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Standard XII

Chemistry

Redox Reactions

A compound ...

Question

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 $(Z)$ . $(Z)$ on oxidation with chromic acid gives $(Y)$ . $(X), (Y)$ and $(Z)$ are:

X = C H_{3} C O O C H_{3} Y = C H_{3} C O O H Z = C H_{3} O H

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X = C H_{3} C O O C_{2} H_{5} Y = C H_{3} C O O H Z = C_{2} H_{5} O H

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X = C_{2} H_{5} C O O C H_{3} Y = C_{2} H_{5} C O O H Z = C_{2} H_{5} O H

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X = C H_{3} C O O C_{2} H_{5} Y = C_{2} H_{5} C O O H Z = C H_{3} O H

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Solution

The correct option is B $X = C H_{3} C O O C_{2} H_{5} Y = C H_{3} C O O H Z = C_{2} H_{5} O H$
$C H_{3} C O O C_{2} H_{5} Ethyl ethanoate (x) H_{2} O / H^{+} - ---- \to C H_{3} C O O H (Y) + C_{2} H_{5} O H (Z) C r O_{3} - -- \to C H_{3} C O O H (Y)$

Hence, option $B$ is correct.

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Similar questions

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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.

Q. A neutral compound 'X' of molecular formula C₂H₆O on oxidation with acidified potassium dichromate gives a compound 'Y'. Compound 'X' reacts with 'Y' on warming in presence of conc. H₂SO₄to give a sweet smelling substance 'Z'. What are 'X', 'Y' and 'Z'? Give equations of the reactions involved.

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A compound (X) having molecular formula C4H8O2 is hydrolysed by water in presence of an acid to give a carboxylic acid (Y) and an alcohol (Z). (Z) on oxidation with chromic acid gives (Y). (X), (Y) and (Z) are:

The correct option is B X=CH3COOC2H5Y=CH3COOHZ=C2H5OHCH3COOC2H5Ethyl ethanoate (x)H2O/H+−−−−−→CH3COOH(Y)+C2H5OH(Z)CrO3−−−→CH3COOH(Y)Hence, option B is correct.

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 $(Z)$ . $(Z)$ on oxidation with chromic acid gives $(Y)$ . $(X), (Y)$ and $(Z)$ are:

The correct option is B $X = C H_{3} C O O C_{2} H_{5} Y = C H_{3} C O O H Z = C_{2} H_{5} O H$
$C H_{3} C O O C_{2} H_{5} Ethyl ethanoate (x) H_{2} O / H^{+} - ---- \to C H_{3} C O O H (Y) + C_{2} H_{5} O H (Z) C r O_{3} - -- \to C H_{3} C O O H (Y)$

Hence, option $B$ is correct.