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Standard XII

Chemistry

Representations of Organic Compounds

An ester of m...

Question

An ester of molecular formula $C_{4} H_{8} O_{2}$ was produced by the reaction of an alcohol with a carboxylic acid.
Alcohols Acids
1 Methanol Propanoic acid
2 Ethanol Ethanoic acid
3 Propanol Methanoic acid
Which of the following could be the alcohol and the acid?

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1 and 2

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1 and 3

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1, 2 and 3

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Solution

The correct option is D 1, 2 and 3
The general equation for formation of ester is shown in IMAGE $01$ .
$(i)$ When $R = - C H_{3}, R^{'} = C H_{3} - C H_{2} -$
Ester is shown in IMAGE $02$
Molecular formula is $C_{4} H_{8} O_{2}$
$(i i)$ When $R = - C_{2} H_{5}, R^{'} = C H_{3} -$
Ester is shown in IMAGE $03$
Molecular formula is $C_{4} H_{8} O_{2}$
$(i i i)$ When $R = - C_{3} H_{7}, R^{'} = H -$
Ester is shown in IMAGE $04$
Molecular formula is $C_{4} H_{8} O_{5}$

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Similar questions

Q. A compound

(X)

having molecular formula

C_{4} H_{8} O_{2}

is hydrolysed by water in presence of an acid to give a carboxylic acid (Y) and an alcohol

(Z)

(Z)

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(X), (Y)

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An organic compound (A) (molecular formula C₈H₁₆O₂) was hydrolysed with dilute sulphuric acid to give a carboxylic acid (B) and an alcohol (C). Oxidation of (C) with chromic acid produced (B). (C) on dehydration gives but-1-ene.Write equations for the reactions involved.

Choose the statement which best describe ester :

Statement 1: Ester is formed due to the reaction between ethanol and Ethanoic acid.

Statement 2: Esters are sweet smelling substances.

Statement 3: Ester are formed due to the reaction between an acid and a carboxylic acid.

Statement 4: On treating with sodium hydroxide, ester is converted back to alcohol and sodium salt of carboxylic acid.

Statement 5: Preparation of soap involves treating sodium hydroxide with ester.

Q. Question 33
A compound

X

is formed by the reaction of a carboxylic acid

C_{2} H_{4} O_{2}

and an alcohol in presence of a few drops of

H_{2} {SO}_{4}

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{KMnO}_{4}

followed by acidification gives the same carboxylic acid as used in this reaction. Give the names and structures of (a) carboxylic acid, (b) alcohol and (c) the compound

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Alcohols, carboxylic acids, and esters with 2-3 carbon atoms are soluble in water. True/False?

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	Alcohols	Acids
1	Methanol	Propanoic acid
2	Ethanol	Ethanoic acid
3	Propanol	Methanoic acid

An ester of molecular formula C4H8O2 was produced by the reaction of an alcohol with a carboxylic acid.AlcoholsAcids1MethanolPropanoic acid2EthanolEthanoic acid3PropanolMethanoic acidWhich of the following could be the alcohol and the acid?

An ester of molecular formula $C_{4} H_{8} O_{2}$ was produced by the reaction of an alcohol with a carboxylic acid.
Alcohols Acids
1 Methanol Propanoic acid
2 Ethanol Ethanoic acid
3 Propanol Methanoic acid
Which of the following could be the alcohol and the acid?