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Chapters
2: Chemical Bonding
3: Study of Acids, Bases and Salts
4: Analytical Chemistry
5: Mole Concept and Stoichiometry
6: Electrolysis
7: Metallurgy
8A: Study of Compounds: Hydrogen Chloride
8B: Study of Compounds: Ammonia
8C: Study of Compounds: Nitric Acid
8D: Study of Compounds: Sulphuric Acid
9A: Organic Chemistry: Organic Compounds
9B: Saturated Hydrocarbons: Alkanes
▶ 9C: Unsaturated Hydrocarbons: Alkenes
9D: Unsaturated Hydrocarbons: Alkynes
9E: Alcohols
9F: Carboxylic Acids
10: Practical Work
![Frank solutions for Chemistry Part 2 [English] Class 10 ICSE chapter 9C - Unsaturated Hydrocarbons: Alkenes - Shaalaa.com](/images/chemistry-part-2-english-class-10-icse_6:c50a513f247a47188e49d8899d6aee9a.jpg "Frank solutions for Chemistry Part 2 [English] Class 10 ICSE chapter 9C - Unsaturated Hydrocarbons: Alkenes")
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Solutions for Chapter 9C: Unsaturated Hydrocarbons: Alkenes
Below listed, you can find solutions for Chapter 9C of CISCE Frank for Chemistry Part 2 [English] Class 10 ICSE.
Frank solutions for Chemistry Part 2 [English] Class 10 ICSE 9C Unsaturated Hydrocarbons: Alkenes Exercises [Page 273]
Choose the most appropriate answer:
Baeyer’s reagent is ______.
aqueous solution of KCl.
aqueous solution of K2Cr2O7.
aqueous solution of KMnO4.
None of the above.
Which catalyst is used in the hydrogenation of oils:
Alkynes
Alkanes
Alkenes
Alcohols
Fill in the blanks using the correct options:
Alkene used for the artificial ripening of fruits is ______.
Butene
Ethene
Alkenes are commonly known as ______.
Paraffine
Olefins
Name the organic compound prepared by each of the following reactions:
\[\ce{C2H5Br + KOH (alcoholic solution) ->}\]
Name the organic compound prepared by the following reaction:
\[\ce{C2H5OH ->[conc{.} H2SO4][170^\circ C]}\]
Name the organic compound prepared by the following reaction:
\[\ce{H2C = CH2 + H2SO4 (conc{.}) ->}\]
Write the observation and name of the product for the following:
When ethene is passed in bromine solution in CCl4.
Write the observation and name of the product for the following:
When Baeyer’s reagent reacts with ethene.
Write the balanced equation to convert:
Ethanol to ethene.
Write the balanced equation to convert:
Ethene to ethanol.
How would you convert:
Ethene into 1, 2-dibromoethane.
How would you convert:
Ethene to bromoethane?
The molecules of alkene family are represented by a general formula CnH2n.
Answer the following:
(i) What do n and 2n signify?
(ii) What is the name of alkene when n=4?
(iii) What is the molecular formula of the alkene, if there are six
hydrogen atoms in it?
(iv) Write the molecular and structural formula of the first member of
alkene family.
(v) Write the molecular formulae of lower and higher homologues of
an alkene which contains four carbon atoms.
How is ethylene prepared in laboratory? Give balanced equation and
procedure. How is the gas prepared and dried?
Hovv will you differentiate that vvhether the given gas is ethane or ethene?
What is hydrogenation? How hydrogenation of ethene occurs?
Give one use of hydrogenation.
Give two equations to show the conversion of a unsaturated compound to
saturated compound.
What is meant by an addition reaction?
Why does ethene undergo addition reactions?
Give two examples of addition reactions.
Give three uses of ethene.
Write the physical properties of ethene.
Frank solutions for Chemistry Part 2 [English] Class 10 ICSE 9C Unsaturated Hydrocarbons: Alkenes Questions from ICSE Examinations [Page 274]
Fill in the blanks with the choices given in options:
Conversion of ethanol to ethene by the action of concentrated sulphuric acid is an example of _________.
Dehydration
Dehydrogenation
Dehydrohalogenation
Hydrolysis
Write a balanced equation for the following reaction:
Chlorine gas is reacted with ethene.
What is the special feature of the structure of ethyne?
Write a balanced chemical equation for the preparation of :
Ethene from bromoethane
Name the gas evolved in each of the following cases :
Ethene undergoes hydrogenation reaction.
State one relevant observation for the following reaction.
Addition of excess ammonium hydroxide into copper sulphate solution.
Copy and complete the following paragraph using the options given in brackets:
Alkenes are a homologous series of (i) ______ (saturated/unsaturated) hydrocarbons characterised by the general formula (ii) ______ (CnH2n−2/CnH2n). Alkenes undergo (iii) ______ (addition/substitution) reactions and also undergo (iv) ______ (hydrogenation/dehydrogenation) to form alkanes.
Conversion of ethene to ethane is an example of ______.
hydration
hydrogenation
Write balanced equations to show the preparation of the following:
Ethyne from calcium carbide.
Choose the correct answers to the questions from the given options:
The unsaturated hydrocarbons undergo ______.
a substitution reaction
an oxidation reaction
an addition reaction
none of the above
redox reaction
Complete and balance the following equation:
\[\ce{C2H4Br2 + alcoholic KOH ->[\Delta]}\]
Solutions for 9C: Unsaturated Hydrocarbons: Alkenes
Frank solutions for Chemistry Part 2 [English] Class 10 ICSE chapter 9C - Unsaturated Hydrocarbons: Alkenes
Shaalaa.com has the CISCE Mathematics Chemistry Part 2 [English] Class 10 ICSE CISCE solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. Frank solutions for Mathematics Chemistry Part 2 [English] Class 10 ICSE CISCE 9C (Unsaturated Hydrocarbons: Alkenes) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.
Further, we at Shaalaa.com provide such solutions so students can prepare for written exams. Frank textbook solutions can be a core help for self-study and provide excellent self-help guidance for students.
Concepts covered in Chemistry Part 2 [English] Class 10 ICSE chapter 9C Unsaturated Hydrocarbons: Alkenes are Alkenes, Ethene (Ethylene), Preparation of Ethene (Ethylene), Physical Properties of Alkenes, Chemical Properties of Alkenes, Uses of Ethene.
Using Frank Chemistry Part 2 [English] Class 10 ICSE solutions Unsaturated Hydrocarbons: Alkenes exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Frank Solutions are essential questions that can be asked in the final exam. Maximum CISCE Chemistry Part 2 [English] Class 10 ICSE students prefer Frank Textbook Solutions to score more in exams.
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