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Q.

Compound ‘X’ gives effervescence with ${NaHCO}_{3}$ . Compound ‘Y’ gives positive Tollen's and Fehling's test. ‘X’ and ‘Y’ are respectively

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a

$X = {CH}_{3} COOH; Y = C_{6} H_{5} OH$

b

$X = C_{6} H_{5} OH; Y = {CH}_{3} COOH$

c

$X = {CH}_{3} COOH; Y = {CH}_{3} CHO$

d

$X = C_{6} H_{5} OH; Y = {CH}_{3} CHO$

answer is D.

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Detailed Solution

Acids gives effervescence with ${NaHCO}_{3}$ due to the liberation of ${CO}_{2}$ .

Aliphatic aldehydes give positive Tollen's and Fehling's test.

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