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Chapters
Chapter 2: Chemical Bonding
Chapter 3: Acids, Bases and Salts
Chapter 4: Analytical Chemistry: Uses of Ammonium Hydroxide and Sodium Hydroxide
Chapter 5: Mole concept and Stoichiometry
Chapter 6: Electrolysis
Chapter 7: Metallurgy
Chapter 8: Study of Compounds - Hydrogen Chloride
Chapter 9: Study of Compounds - Ammonia
Chapter 10: Study of Compounds - Nitric Acid
Chapter 11: Sulphuric Acid
Chapter 12: Organic Chemistry
Chapter 13: Practical Work

Chapter 12: Organic Chemistry
Selina solutions for Concise Chemistry Class 10 ICSE Chapter 12 Organic Chemistry Intext Questions [Page 188]
What are organic compounds?
What is the Vital force theory? Why was it discarded?
Name a few sources of organic chemistry ?
Give the various applications of organic chemistry ?
Organic chemistry plays a key role in all walks of life. Discuss
Carbon shows some unique properties, name them ?
Explain the following : Tetravalency
Explain the following : Catenation
Write any four properties of organic compounds that distinguish them from inorganic compounds.
Why are organic compounds studies as a separate branch of chemistry?
What are Hydrocarbons? Compare saturated and unsaturated hydrocarbons?
Give reason for the existence of the large number of organic compounds.
Give at least one example in case to show structure of isomers of single bond compound ?
Give at least one example in case to show structure of isomers of double bond compound ?
Give at least one example in case to show structure of isomers of triple bond compound ?
Name a compound and draw the figure
Cyclic compound with a single bond?
Name a compound and draw the figure
Cyclic compound with the triple bond?
Give the name of one member of the saturated hydrocarbons ?
Give the name of one member of the unsaturated hydrocarbons ?
Define the substitution and addition reaction. Give an example for each.
Selina solutions for Concise Chemistry Class 10 ICSE Chapter 12 Organic Chemistry Intext Questions [Page 193]
Define a functional group and give the structural formula of the following functional group:
(a) Ketons
(b) Alcohols
(c) Aldehydes
Write the name and formula of the fourth member of the following homologous series:
- Alkyne
- Alcohol
Which part of an organic compound determines physical properties ?
Which part of an organic compound determines chemical properties ?
Name the alkyl radical and the functional group of the following organic compounds:
(a) CH3OH
(b) C2H5OH
(c) C3H7CHO
(d) C4H9COOH
(e) CH3COOH
(f) HCHO
What is an alkyl group?
Give the names of any three alkyl radicals. How are they formed?
Give the names and the structural formula of the first three members of the homologous series of alkanes.
What is a Homologous series?
What is the difference in the molecular formula of any two adjacent homologues:
(i) In terms of molecular mass
(ii) In terms of number and kind of atoms per molecule?
Selina solutions for Concise Chemistry Class 10 ICSE Chapter 12 Organic Chemistry Exercise 12A [Pages 194 - 196]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{CH3}\\
|\\
\ce{CH3 -C -CH3}\\
|\\
\ce{CH3}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{CH3 -CH -CH2 -CH3}\\
|\phantom{.......}\\
\ce{CH3}\phantom{.......}
\end{array}\]
Write the IUPAC name of the following :
\[\begin{array}{cc}
\ce{H\phantom{...}H\phantom{...}H}\\
|\phantom{....}|\phantom{....}|\\
\ce{H - C = C - C -H}\\
\phantom{..........}|\\
\phantom{..........}\ce{H}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{CH3}\phantom{.........}\\
|\phantom{.........}\\
\ce{H3C - C - CH2CH2CH3}\\
|\phantom{.........}\\
\ce{CH3}\phantom{.........}
\end{array}\]
Write the IUPAC name of the following:
\[\ce{CH3 - C ≡ C - CH2 CH3}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\phantom{............}\ce{CH3}\\
\phantom{..........}|\\
\ce{H - C = C - C - H}\\
\phantom{..........}|\\
\phantom{.............}\ce{CH3}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{Cl}\phantom{.............}\\
|\phantom{.............}\\
\ce{CH3 - CH - CH - CH2 - CH3}\\
|\\
\ce{Cl}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{CH3\phantom{...}CH3\phantom{.......}}\\
\phantom{..}|\phantom{.......}|\phantom{........}\\
\ce{CH2 - CH - CH2}\\
\phantom{...........}|\\
\phantom{.......................}\ce{CH2 CH2 CH3}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{H\phantom{..}H}\\
|\phantom{...}|\\
\ce{H3C - C=C - CH3}\\
\end{array}\]
Write the IUPAC name of the following:
\[\ce{CH3 - C ≡ C - CH2 CH2 CH2 CH3}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{CH3}\phantom{.............}\\
|\phantom{...............}\\
\ce{CH3 - C - CH2 CH2 CH2 CHO}\\
|\phantom{...............}\\
\ce{CH3}\phantom{............}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{CH3 - CH - CH2 CH2 CH3}\\
|\phantom{............}\\
\ce{OH}\phantom{..........}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{CH3 CH CH2 CH2 COOH}\\
|\phantom{..............}\\
\ce{CH3}\phantom{...........}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{CH3}\phantom{.....}\\
|\phantom{.....}\\
\ce{CH3 - C - CH2 CH3}\\
|\phantom{.....}\\
\ce{Br}\phantom{.....}
\end{array}\]
Write the IUPAC name of the following :
\[\begin{array}{cc}
\ce{CH3}\phantom{.........}\\
|\phantom{...........}\\
\ce{CH3 - CH - CH2 - CH2Br}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{H}\phantom{.........}\\
|\phantom{.........}\\
\ce{H - C - C ≡ C - H}\\
|\phantom{.........}\\
\ce{H}\phantom{.........}
\end{array}\]
Write the IUPAC name of the following :
\[\begin{array}{cc}
\ce{H - C = O}\\
|\\
\ce{H}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{H}\phantom{.........}\\
|\phantom{.........}\\
\ce{H - C - C ≡ C - H}\\
|\phantom{.........}\\
\ce{H}\phantom{.........}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{H\phantom{...}H\phantom{...}H\phantom{..}}\\
\phantom{..}|\phantom{....}|\phantom{....}|\phantom{....}\\
\ce{H - C - C - C - OH}\\
\phantom{..}|\phantom{....}|\phantom{....}|\phantom{....}\\
\ce{H\phantom{...}H\phantom{...}H\phantom{..}}\\
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{\phantom{.....}H\phantom{...}O}\\
\phantom{.....}|\phantom{....}||\\
\ce{H - C - C}\\
\phantom{.....}|\phantom{....}|\\
\ce{\phantom{.......}H\phantom{...}OH}\\
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{H\phantom{...}O}\\
|\phantom{....}||\\
\ce{H - C - C - H}\\
|\phantom{.....}\\
\ce{H}\phantom{.....}
\end{array}\]
Write the IUPAC name of the following:
\[\begin{array}{cc}
\ce{H\phantom{...}H}\\
|\phantom{....}|\\
\ce{H - C - C - H}\\
|\phantom{....}|\\
\ce{Cl\phantom{...}Cl}\\\end{array}\]
Write the structure of the following compound:
Prop-1-ene
The Structure of the Following Compound :
2,3-dimethylbutane
Write the structure of the following compound:
2 – methylpropane
Write the structure of the following compound:
3-hexene
Write the structure of the following compound:
prop– 1 – yne
Write the structure of the following compound:
2-methylprop – 1- ene
Write the structure of the following compound:
Alcohol with molecular formula C4H10O
Choose the correct answer:
C5H11 is an
alkane
alkene
Alkyne
Alkyl group
Choose the correct answer:
A hydrocarbon of the general CnH2n is
C15H30
C12H26
C8H20
C6H14
Choose the correct answer:
The total number of different carbon chains that four carbon atoms form in alkane is
5
4
3
2
Choose the correct answer :
CH3-CH2-OH and CH3-O-CH3 are
Position isomers
chain isomers
homologous
functional group isomers
The IUPAC name of the compound is
\[\begin{array}{cc}
\ce{CH3}\\
|\\
\ce{CH3 - CH2 - CH2 - CH - CH2 - CH3}
\end{array}\]
3-trimethylhexane
3- methyl hexane
4 – methyl hexane
Fill in the blank:
Propane and ethane are ____________
Homologues
isomers
Fill in the blank:
A saturated hydrocarbon does not participate in a/an _________ reaction.
substitution
addition
Fill in the blank:
Succeeding members of a homologous series differ by ______________
CH
CH2
CH3
Fill in the blank:
As the molecular masses of hydrocarbons increase, their boiling points ________ and melting point ____________
increase
decrease
Fill in the blank :
C25H52 and C50H102 belong to ______ homologous series.
the same
different
Fill in the blank:
CO is an__________ Compound.
organic
inorganic
Fill in the blanks:
The chemical properties of an organic compound are largely decided by the ___________ and the physical properties of an organic compound are largely decided by the ___________ . (functional group, number of carbon atoms)
Fill in the blank:
CHO is the functional group of an __________.
alcohol
aldehyde
Fill in the blank:
The root in the IUPAC name of an organic compound depends upon the number of carbon atoms in _____________
any chain
principal chain
Fill in the blank:
But-1-ene and but-2-ene are examples of ___________ isomerism.
Chain
position
functional
Define or explain chain isomerism and position isomerism with examples in each case.
Define the term isomerism. State two main causes of isomerism.
Draw the chain isomers of hexane (C6H14) .
Draw position isomers of butane (C4H8) ?
Draw the structural formula for the following compounds:
isomer of n-butane
Draw the structural formula for the following compound: vinegar
Draw the structural formula for the following compound: 2-propanol
Draw the structural formula for the following compound: Ethanal
Draw the structural formula for the following compound: acetone
Draw the structural formula for the following compound: diethyl ether
What is the special feature of the structure of (i) ethane (ii) ethyne
what type of reaction is common to both the above compounds? Why methane does not undergo this type of reaction.
What is IUPAC name of dimethyl ether.
Which type of reaction will ethane undergo?
Which type of reaction will Ethene undergo?
Choosing only words from the following list, write down appropriate words to fill in the blanks from (a) to (e) given below. Addition, carbohydrates, CnH2n-2, CnH2n,CnH2n+2, electrochemical homologous, hydrocarbon, saturated, substitution, unsaturated.
The alkanes from an (a) ………… series with the general formula (b) ………….. The alkanes are (c) …………. (d) …………… which generally undergo (e) …………. reactions.
Draw the structural formula of a compound with two carbon atoms in the following case.
An alkane with carbon to carbon single bond
Draw the structural formula of a compound with two carbon atoms in the following case.
An alcohol containing two carbon atoms
Draw the structural formula of a compound with two carbon atoms in the following case.
An unsaturated hydrocarbon with carbon to carbon triple bond
Ethane, Ethene, Ethanoic acid, Ethyne, Ethanol From the above, name
The compound with -OH as the part of its structure.
Ethane, Ethene, Ethanoic acid, Ethyne, Ethanol From the above, name
The compound with -COOH as part of its structure.
Ethane, Ethene, Ethanoic acid, Ethyne, Ethanol From the above, name Homologue of the homologous series with the general formula CnH2n.
Give the correct IUPAC name and the functional group for the compounds whose structural formulae are given below:
\[\begin{array}{cc}
\ce{H\phantom{...}H\phantom{...}O}\\
\phantom{.}|\phantom{....}|\phantom{....}||\\
\ce{H - C - C - C - H}\\
\phantom{.}|\phantom{....}|\phantom{.....}\\
\ce{H\phantom{...}H\phantom{....}}
\end{array}\]
Give the correct IUPAC name and the functional group for the compounds whose structural formulae are given below:
\[\begin{array}{cc}
\ce{H\phantom{...}H\phantom{...}H\phantom{..}}\\
|\phantom{....}|\phantom{....}|\phantom{..}\\
\ce{H - C - C - C - OH}\\
|\phantom{....}|\phantom{....}|\phantom{..}\\
\ce{H\phantom{...}H\phantom{...}H\phantom{..}}
\end{array}\]
Copy and complete the following table which relates to three homologus series of hydrocarbons:
General formula | CnH2n | CnH2n-2 | CnH2n+2 |
IUPAC name of the homologus series | |||
Characteristic bond type | Single bond | ||
IUPAC name of the first member of the series | |||
Type of reaction with chlorine | Addition |
Fill in the blanks with correct words from the brackets:
Alkenes are the (a) _______ (analogous/homologous) series of (b ) ______ (saturated /unsaturated) hydrocarbons. They differ from alkanes due to presence of (c) _______ (double/ single) bonds. Alkenes mainly undergo (d) ______ (addition/ substitution) reactions.
Fill in the blank with the correct word
The organic compound which undergoes substitution reaction is ___________
C2H2
C2H4
C10H18
C2H6
Draw the structural formulae of the two isomers of Butane. Give the correct IUPAC name of each of the isomer.
Name the saturated hydrocarbon containing two carbon atoms.
Name : An alcohol with three carbon atom.
Name : A triple bond hydrocarbon with two carbon atoms.
Selina solutions for Concise Chemistry Class 10 ICSE Chapter 12 Organic Chemistry Exercise 12B [Page 202]
State the sources of Alkanes.
Methane is a greenhouse gas. comment.
Give the general formula of alkanes.
Draw the structures of isomers of : butane. Write the IUPAC and common names of these isomer.
Draw the structures of isomer of : pentane. Write the IUPAC and common names of these isomer
Write the
(a) Molecular formula
(b) Electron dot formula and
(c) The structural formula of methane and ethane
How is methane prepared in the laboratory ?
How is ethane prepared in the laboratory?
How are methane and ethane prepared from methyl iodide and ethyl bromide?
What is the substitution reaction? Give the reaction of chlorine with ethane and name the product formed?
Name the compounds formed when methane burns in : sufficient air, Give a balanced equation
Name the compounds formed when methane burns in: insufficient air , Give a balanced equation
Write the names and formula of the products formed when Methane reacts with : (i) Chlorine (ii) bromine. Write the chemical equations.
Write the names and formula of the products formed when Methane reacts with : (i) Chlorine (ii) bromine. Write the chemical equations.
Name the compound prepared from: sodium propionate. Write the balanced equation for the same
Name the compound prepared from methyl iodide . Write the balanced equation for the same
Name the compound prepared from ethyl bromide write a balanced equation for the same.
Write the equation for the complete combustion of (i) methane (ii) ethane.
Convert:
Methane into chloroform
Convert:
sodium acetate into methane
Convert:
Methyl iodide into ethane
Convert: Methane to methyl alcohol
Give three uses of methane.
Give three uses of ethane.
Under what conditions does ethane gets converted to Ethyl alcohol
Under what conditions does ethane get converted to acetaldehyde .
Under what conditions does ethane gets converted to acetic acid
Using appropriate catalysts, ethane can be oxidized to an alcohol, an aldehyde and an acid. name the alcohol, aldehyde and acid formed when ethane is oxidized.
Selina solutions for Concise Chemistry Class 10 ICSE Chapter 12 Organic Chemistry Exercise 12C [Page 206]
Write (a) molecular formula, (b) electron dot formula and (c) structural formula of ethene (Ethylene).
The molecules of the alkene family are represented by a general formula CnH2n. Answer the following: What do n and 2n signify?
The molecules of the alkene family are represented by a general formula CnH2n. Answer the following :
what is the name of alkene when n = 4?
The molecules of the alkene family are represented by a general formula CnH2n. Answer the following :
What is the molecular formula of alkene when n = 4?
The molecules of the alkene family are represented by a general formula CnH2n. Answer the following :
what is the molecular formula of the alkene if there are ten H atoms in it?
The molecules of the alkene family are represented by a general formula CnH2n. Answer the following :
what is the structural formula of the third member of the alkene family?
The molecules of alkene family are represented by a general formula CnH2n. Answer the following :
write the molecular formula of lower and higher homologous of an alkene which contains four carbon atoms.
Distinguish between the saturated hydrocarbon ethane and the unsaturated hydrocarbon ethene by drawing their structural formulae.
Draw the structure of isomers of butane and write their IUPAC names.
Give a balanced equation for the lab. Preparation of ethylene. How is the gas collected?
How is ethene prepared by dehydrohalogenation reaction? Give an equation and name the products formed.
How is ethene prepared by dehydration reaction? Give an equation and name the products formed.
Ethylene when reacts with halogens (chlorine and bromine) form saturated products. Name them and write balanced equations.
Give the conditions and the main products formed by hydrogenation of ethene.
Convert ethanol into ethene using Solid dehydrating agent .Give only balanced equations.
Convert ethanol into ethene using Hot conc. H2SO4 .Give only balanced equation.
Write the following properties of ethene:
Physical state
Write the following properties of ethene:
Odour
Write the following properties of ethene :
Density as compared to air
Write the following properties of ethene:
Solubility
How would you convert:
ethyl bromide into ethene ?
How would you convert:
ethene into 1, 2-dibromoethane?
How would you convert: ethene into ethane ?
Give balanced equations when:
ethene is burnt in excess of oxygen
Give balanced equations when:
ethene reacts with chlorine gas.
Give balanced equations when:
ethene combines with hydrogen chloride
Give balanced equations when:
A mixture of ethene and hydrogen is passed over nickel at 200° C.
Give the formula and name of A, B, C and D in the following equation:
\[\ce{CH4 ->[Cl2][-HCl]A ->[Cl2][-HCl]B ->[Cl2][-HCl]C->[Cl2][-HCl]D}\]
Give the formula and name of A, B ,C, and D in the following equation:
\[\ce{C2H2 ->[H2]A->[H2]B->[Br2][-HBr]C->[Br2][-HBr]D}\]
Give the formula and name of A, B ,C and D in the following equation:
\[\ce{C2H4 + B ->[200°C][Ni]C2H6}\]
Write the name and formula of the product formed in the case below:
C2H4 +Cl2 → ______
Write the name and formula of the product formed in the case below:
\[\ce{C2H5I + KOH(alc.)->[\Delta]}\]___________
Write the name and formula of the product formed in the case below:
\[\ce{H2C = CH2 ->[alk.KMnO4]}\]__________
Write the name and formula of the product formed in the case below:
\[\ce{H2C = CH2 + HBr →}\]___________
What do you observe when ethene is passed through alkaline KMnO4 solution?
Name three compounds formed by ethene and give one use of each compound.
Selina solutions for Concise Chemistry Class 10 ICSE Chapter 12 Organic Chemistry Exercise 12D [Page 210]
What are the sources for alkynes? Give the general formula of alkynes.
Give an example of isomers shown by triple bond hydrocarbon (alkynes) and write its IUPAC name.
Draw a diagram of acetylene prepared in the laboratory?
Give an equation of acetylene prepared in the laboratory ?
How is pure dry gas collected acetylene prepared in the laboratory?
Give the method of preparation of ethyne by 1, 2− dibromoethene.
Name the hydrocarbon which is a tetrahedral molecule .
Name the hydrocarbon which is a planar molecule .
Name the hydrocarbon which is a linear molecule .
Name the hydrocarbon which forms a red precipitate with ammoniacal solution of copper (I) chloride .
Name the hydrocarbon which is known as paraffin .
Name the hydrocarbon which is known as olefin .
Name the hydrocarbon which:
A compound which will give acetylene (ethene) gas when treated with water.
Classify the compounds C3H4 as alkanes, alkenes and alkynes ?
Classify the compounds C3H8 as alkanes, alkenes and alkynes ?
Classify the compounds C5H8 as alkanes, alkenes and alkynes ?
Classify the C3H6 compounds as alkanes, alkenes and alkynes ?
Give a chemical test to distinguish between Saturated and Unsaturated?
Give a chemical test to distinguish between of ethane and ethene ?
Give a chemical test to distinguish between of ethene (ethylene) and ethyne (acetylene) ?
Compound X bubbled through bromine dissolved in CCl4
\[\ce{X ->[Br2/CCl4]}\begin{array}{cc}\ce{H2C - Br}\\|\phantom{.-}\\\ce{H2C - Br}\end{array}\]
(a) Draw the structure of X.
(b) State your observation during the reaction.
Give a balanced equation for the following conversation.
An alkene to an alkane
Give a balanced equation for the following conversation.
An alkene to an alcohol
Give a balanced equation for the following conversation.
An alkyne to an alkene
Name the products formed and write an equation when ethyne is added to the following in an inert solvent:
Chlorine
Name the products formed and write an equation when ethyne is added to the following in an inert solvent:
Bromine
Name the products formed and write an equation when ethyne is added to the following in an inert solvent:
Iodine
Name the products formed and write an equation when ethyne is added to the following in an inert solvent:
hydrogen
Name the products formed and write an equation when ethyne is added to the following in an inert solvent:
excess of hydrochloric acid
Substitution reactions are characteristic reactions of ___________
alkynes
alkenes
alkanes
Write an equation for the laboratory preparation of
- An unsaturated hydrocarbon from calcium carbide.
- Alcohol from ethyl bromide.
What would you see, when ethyne is bubbled through a solution of bromine in carbon tetrachloride?
Name the addition product formed between ethene and water
Give reason of ethyne is more reactive than ethene ?
Give reason:
Ethene is more reactive then ethane.
Give reason:
Hydrocarbons are excellent fuels.
Write a balanced equation:
When butane is burnt in oxygen.
Write a balanced equation:
Preparation of ethylene from ethyl alcohol.
Write a balanced equation:
Convert ethane to acetic acid
Write a balanced equation:
Convert ethyne to ethane
Write the equation for the preparation of carbon tetrachloride from methane.
Draw the structure formula of ethyne.
How is the structure of alkynes different from that of alkenes?
Selina solutions for Concise Chemistry Class 10 ICSE Chapter 12 Organic Chemistry Exercise 12E [Page 214]
what are alcohols? State their sources.
Give general formulae of monohydric alcohol?
Give the Dot diagram of the first member of the alcohol
Give the : abbreviated formula of the third member of the alcohol
Give the : Structure of the second member of the alcohol group
Give the: structure of alcohol with 4 carbon atoms.
State the method of preparation of ethanol by hydrolysis of ethane.
State the method of preparation of ethanol by hydrolysis of ethyl bromide.
Haloalkanes react with alkalies to produce alcohol. Give the equation for the preparation of the second member of the homologous series of alcohol. State under what condition the reaction occurs.
How do the boiling point and melting point change in the homologous series of alcohols?
Name the product formed when ethanol reacts with acetic acid. Give an equation.
What is the name given to this type of reaction?
Complete and balanced the following equation. State the condition wherever necessary.
CH
||| + H2 → …………………. + H2 ………………… →
CH
Complete and balanced the following equation. State the condition wherever necessary.
C2H4 + Br2 → ……………..
Complete and balanced the following equation. State the condition wherever necessary.
C2H4 + HCl → …………….
Complete and balanced the following equation. State the condition wherever necessary.
CaC2 + H2O → …………….
Complete and balanced the following equation. State the condition wherever necessary.
C2H2 + Br2 → ………………
Complete and balanced the following equation. State the condition wherever necessary.
\[\ce{C2H5OH ->[O][K2Cr2O7]}\]____________
What is the effect ethanol on human body.
How are the absolute alcohol obtained ?
How are the spurious alcohol obtained ?
How are the methylated spirit obtained ?
Name the products formed and give appropriate chemical equations for the sodium reacting with ethyl alcohol ?
Name the products formed and give appropriate chemical equations for the Ethanol oxidized by acidified potassium dichromate ?
Give the trivial (common) names and IUPAC names of the following:
(a) C3H6
(b) C2H4
(c) C2H2
(d) CH3OH
(e) C2H5OH
Ethanol can be oxidized to ethanoic acid. Write the equation and name the oxidizing agent.
Name an organic compound which is used for illuminating country houses ?
Name an organic compound which is Used for making a household plastic material ?
Name an organic compound which is Called 'wood spirit' ?
Name an organic compound which is Poisonous and contains OH group ?
Name an organic compound which is Consumed as a drink ?
Name an organic compound which is Made from water gas ?
Name an organic compound which is: solvent for gums and resins.
Name an organic compound which is: dehydrated to produce ethene.
Ethanol can be converted into ethene which can be changed into ethane. Choose the correct
word or phrase from the brackets to complete the following sentences.
(a) The conversion of ethanol into ethene is an example of ___________
(b) Converting ethanol into ethene requires the use of ___________
(c) The conversion of ethene into ethane is an example of ___________
(d) The catalyst used in the conversion of ethene into ethane is commonly ___________
Write the equation of the following laboratory preparations:
Ethane from sodium propionate
Write the equation of the following laboratory preparations:
Ethene from iodoethane
Write the equation for the following lab preparations:
Ethyne from Calcium carbide
Write the equation for the following lab preparations:
Methanol from Iodomethane.
Name the compound prepared by the following reaction:
C2H5COONa +NaOH →
Name the compound prepared by the following reaction:
CH3I +2H →
Name the compound prepared by the following reaction:
C2H5Br +KOH (alcoholic solution) →
Name the compound prepared by the following reaction:
CO + 2H2 (Zinc oxide catalyst) →
Name the compound prepared by the following reaction:
CaC2 + 2H2O →
Write the equation for the following reaction:
Calcium carbide and water
Write the equation for the following reaction:
Ethene and water (steam)
Write the equation for the following reaction:
Bromoethane and an aqueous solution of sodium hydroxide
Selina solutions for Concise Chemistry Class 10 ICSE Chapter 12 Organic Chemistry Exercise 12F [Page 217]
What are carboxylic acids? Give their general formula?
Write the names of First three members of carboxylic acids series
Write the names of three compounds that can be oxidized directly or in stages to produce acetic acid.
Give the structural formulae of acetic acid? IUPAC name of acetic acid. What is glacial acetic acid?
Vinegar is greyish in colour with a particular taste. Explain.
Complete:
Vinegar is prepared by the bacterial oxidation of …………….
Complete :
The organic acid present in vinegar is ……………………..
Complete:
The next higher homologue of ethanoic acid is …………………
How is acetic acid prepared from ethanol?
How is acetic acid prepared from acetylene?
What do you notice when acetic acid reacts with litmus ?
What do you notice when acetic acid reacts with metals ?
What do you notice when acetic acid reacts with alkalies ?
What do you notice when acetic acid reacts with alcohol ?
Acetic acid is a typical acid. Write one equation in case of its reactions with a metal?
Acetic acid is a typical acid. Write one equation in case of its reactions with a base/alkali?
Acetic acid is a typical acid. Write one equation in case of its reactions with A carbonate?
Acetic acid is a typical acid. Write one equation in case of its reactions with A bicarbonate?
What do you observe when acetic acid is added to sodium bicarbonate ?
What do you observe when acetic acid is added to ethyl alcohol in the presence of sulphuric acid ?
What do you observe when acetic acid is added to a neutral FeCl3 solution?
Name the compound formed when acetic acid and ethanol react together?
Name the reducing agent used to convert acetic acid into ethanol?
Name the substance used to change acetic acid to acetic anhydride?
Selina solutions for Concise Chemistry Class 10 ICSE Chapter 12 Organic Chemistry Miscellaneous [Page 217]
Which of the following statements is wrong about alkanes?
They are all saturated hydrocarbons.
They can undergo addition as well as substitution reactions.
They are almost non-polar in nature.
On complete combustion, they give out carbon dioxide and water.
The organic compound obtained as the end product of the fermentation of sugar solution is
Methanol
Ethanol
Ethane
Methanoic acid
Find the odd one out and explain :
C3H8
C5H10
C2H6
CH4
Give the chemical equation for :
The laboratory preparation of methane from sodium acetate.
Give the chemical equation for :
The reaction of one mole of ethene with one mole of chlorine gas.
Give the chemical equation for :
The preparation of ethyne from 1, 2-dibromoethane.
State how the following conversion can be carried out:
Ethyl chloride to ethyl alcohol
State how the following conversion can be carried out:
Ethyl chloride to ethene
State how the following conversion can be carried out:
Ethene to ethyl alcohol
State how the following conversion can be carried out:
Ethyl alcohol to ethene
Define isomerism.
Give the IUPAC name of the isomer C4H10 which has a branched-chain.
A compound X when treated with an organic acid Y (having vinegar-like smell) in the presence of the acid Z, forms a compound P which has a fruity smell.
(a) Identify X, Y, and Z
(b) Write the structural formula of X and Y.
(c) What type of compound P is?
(d)Name the above reaction.
(e) If compound X and Y both have 2 carbon atoms. Write the reaction.
Chapter 12: Organic Chemistry

Selina solutions for Concise Chemistry Class 10 ICSE chapter 12 - Organic Chemistry
Selina solutions for Concise Chemistry Class 10 ICSE chapter 12 (Organic Chemistry) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CISCE Concise Chemistry Class 10 ICSE solutions in a manner that help students grasp basic concepts better and faster.
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Concepts covered in Concise Chemistry Class 10 ICSE chapter 12 Organic Chemistry are Special Features of Carbon, Functional Groups in Carbon Compounds, Laboratory Preparation of Methane, Ethene (Ethylene), Laboratory Preparation of Ethyne, Organic Compounds, Organic Compounds in Daily Life, Hydrocarbons, Ethane, Preparation of Ethene (Ethylene), Alcohol, Ethanol, Laboratory Preparation of Ethanol, Classification of Organic Compound Based on the Kind of Atoms, Homologous Series of Carbon Compound, Classification of Organic Compounds Based on the Pattern of Carbon Chain, Nomenclature of Organic Compounds (IUPAC), IUPAC Nomenclature of Hydrocarbons, Hydrocarbons: Alkynes, Ethyne, Carbon: a Versatile Element, Classification of Compounds of Carbon, IUPAC Nomenclature of other classes, Alkyl Group, Isomers, Hydrocarbons: Alkanes, Methane, Laboratory Preparation of Ethane, Hydrocarbons: Alkenes, Carboxylic Acids, Ethanoic Acid.
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