Compare the 2 methods shown for the preparation of carboxylic acids Method 1:RBr^{-}\stackrel{Mg}{––––––––>}_{\text{diethyl ether}}RMgBr\stackrel{(i) CO_2}{––––––––>}_{(ii) H_3O^{+}}RCOOH Method 2:RBr\stackrel{NaCN}{––––––––>}RCN\stackrel{H_2O,JCl}{––––––––>}_{\Delta}RCOOHWhich one of the following statements correctly describes this conversion?

Correct Answer is : Method 1 will work well, but method 2 is not appropriate

Both method 1 and 2 are appropriate for carrying out this conversion

Neither method 1 and 2 is appropriate for carrying out this conversion

Method 1 will work well, but method 2 is not appropriate

Method 2 will work well, but method 1 is not appropriate

NEET Exam Model Paper 11

Question : 80 of 180

Marks: +1, -0

Compare the 2 methods shown for the preparation of carboxylic acids

Method 1:RBr−

––––––––>

diethyl ether

RMgBr

(i)‌CO2

––––––––>

(ii)‌H3O+

RCOOH
Method 2:RBr

NaCN

––––––––>

RCN

H2O,JCl

––––––––>

RCOOH

Which one of the following statements correctly describes this conversion?

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