मराठी

Consider the Following Organic Compound: Ch3oh, C2h5oh, Ch3coch3, Ch3cooh, C2h5cooh, C4h9cooc2h5, Ch4, C2h6, Ch3cho, Hcho Out of These Compound: - Science

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प्रश्न

Consider the following organic compound:
CH3OH, C2H5OH, CH3COCH3, CH3COOH, C2H5COOH, C4H9COOC2H5, CH4, C2H6, CH3CHO, HCHO
Out of these compound:

Which compound is most likely to be sweet-smelling?

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उत्तर

The compound C4H9COOC2H5 is a sweet-smelling ester.

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 4: Carbon And Its Compounds - Exercise 3 [पृष्ठ २६६]

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लखमीर सिंह Chemistry (Science) [English] Class 10
पाठ 4 Carbon And Its Compounds
Exercise 3 | Q 70.1 | पृष्ठ २६६

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संबंधित प्रश्‍न

Write three different chemical reactions showing the conversion of ethanoic acid to sodium ethanoate. Write balanced chemical equation in each case. Write the name of the reactants and the products other ethanoic acid and sodium ethanoate in each case.


When ethanol reacts with ethanoic acid in the presence of conc. H2SO4, a substance with fruity smell is produced. Answer the following:-

(i) State the class of compounds to which the fruity smelling compounds belong. Write the chemical equation for the reaction and write the chemical name of the product formed.

(ii) State the role of conc. H2SO4 in the reaction.


Complete the following chemical equations : C2H5OH`("Conc."H_2SO_4)/(443K)`>


Give a reason for Conductivity of dilute hydrochloric acid is greater than that of acetic acid


When zinc powder is added to acetic acid ______________

(a) the mixture becomes warm
(b) a gas is evolved
(c) the colour of the mixture becomes yellow
(d) a solid settles at the bottom


Complete the following equation:

`CH_3 COOH + CH_2 H_5 OH` 


What is the physical state of CH3COOH?


Describe one reaction of a carboxylic acid.


When ethanoic acid reacts with sodium hydrogen carbonate, then a salt X is formed and a gas Y is evolved. Name the salt X and gas. Y Describe an activity with the help of a labelled diagram of the apparatus used to prove that the evolved gas is the one which you have named. Also write the chemical equation of the reaction involved.


State any two uses of esters.

 

A neutral organic compound is warmed with some ethanoic acid and a little of conc. H2SO4. Vapours having sweet smell (fruity smell) are evolved. What type of functional group is present in this organic compound?


An organic acid X is a liquid, which often freezes during winter time in cold countries, having the molecular formula C2H4O2. On warming it with methanol in the presence of a few drops of concentrated sulphuric acid, a compound Y with a sweet  smell is formed.
(a) Identify X and Y. Also write their formulae showing the functional group present in them.
(b) Write a chemical equation for the reaction involved.


How is acetic acid prepared from acetylene?


Name the compound formed when acetic acid and ethanol react together.


While studying saponification reactions, the following comments were noted down by the students :
(I) Soap is a salt of fatty acids.
(II) The reaction mixture is basic in nature.
(III) In this reaction heat is absorbed.
(IV) This reaction is not a neutralisation reaction.
Which of these are the correct comments ?
(A) I and III only
(B) I, II and III
(C) II, III and IV
(D) I and II only


Write the molecular formulae and structure formula of ethanic acid?


Fill in the blank with appropriate word/words.

Vinegar is a solution of about ________per cent ________in water.


Draw the structural formula of a compound with two carbon atoms in the following case:

An alcohol containing two carbon atoms.


Give the balanced chemical equation of the following reaction:

Evolution of carbon dioxide by the action of ethanoic acid with NaHCO3.


Which of these is not an organic acid?


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