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Q.

Given below are two statements. One is labelled as Assertion (A) and the other is labelled as reason (R). 

Assertion (A):  CH3CH2CN on hydrolysis gives ethanoic acid 

Reason (R): Cyanides on hydrolysis gives NH3 and carboxylic acid

In the light of the given statements, choose the correct answer from the options given. 

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a

If both (A) and (R) are true and (R) is the correct explanation of (A) 

 

b

If both (A) and (R) are true and (R) is not the correct explanation of (A) 

 

c

If (A) is true but (R) is false 

 

d

If both (A) and (R) are false

answer is D.

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Detailed Solution

Propanenitrile on hydrolysis gives propanoic acid.

Nitriles are hydrolysed to amides and then to acids in the presence of H+ or OH as catalyst. Mild reaction conditions are used to stop the reaction at the amide stage. 

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