A) \[1>IV>II>III\]
B) \[1>II>III>IV\]
C) \[1>III>II>IV\]
D) \[1V>III>II>I\]
Correct Answer: A
Solution :
(i) Acid chlorides is most reactive and is hydrolysed slowly by water as follows: \[C{{H}_{3}}COCl+{{H}_{2}}O\xrightarrow{{}}C{{H}_{3}}COOH+HCl\] (ii) Acid anhydrides are less reactive than acid chlorides. They are hydrolysed slowly by water. \[{{(C{{H}_{3}}CO)}_{2}}O+{{H}_{2}}O\to 2C{{H}_{3}}COOH\] (iii) Ester are hydrolysed slowly by water in presence of acid or alkali. \[RCOOR+{{H}_{2}}ORCOOH+ROH\] (iv) Amides are hydrolysed very slowly by water. \[R-\overset{\begin{smallmatrix} O \\ || \end{smallmatrix}}{\mathop{C}}\,-N{{H}_{2}}+{{H}_{2}}O\xrightarrow{{{H}^{+}}}RCOOH+N{{H}_{3}}\] \[\therefore \] The correct order of hydrolysis is: \[RCOCl>{{(RCO)}_{2}}O>RCOOR>RCON{{H}_{2}}\]
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