Carboxylic Acids Question 137

Question: Order of hydrolysis for the following (I) $ RCOCl $ (II) $ RCOOR $ (III) $ RCONH_2 $ (IV) $ {{(RCO)}_2}O $

[DPMT 2005]

Options:

A) I>IV>II>III

B) I>II>III>IV

C) I>III>II>IV

D) IV>III>II>I

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Answer:

Correct Answer: A

Solution:

OF all the acid derivatives, acid chlorides, i.e. $ CH_3COCl $ is most reactive. The order of reactivity of acid derivatives decreases in the following order, $ RCOCl>{{(RCO)}_2}O>RCOOR>RCONH_2 $ .