Question

Which among the following is/are incorrect statement(s)?

• A. Grignard reagent may react with $H_{2}O$ to give a hydrocarbon
• B. Grignard reagent reacts with $C{O}_2$ to give an aldehyde
• C. Grignard reagent shows nucleophilic addition with epoxide
• D. Grignard reagent reacts with aldehyde to give primary alcohol

Answer 1

Answer: (B), (C), (D)

Grignard reagent reacts with aldehyde to give primary alcohol

(a)
Hence, statement (a) is correct.


(b)Here, $R^{-}$ will act as nucleophile and undergo nucleophilic addtion followed by hydrolysis to give acetic acid. Hence, statement (b) is incorrect.


(c)Here, $R^{-}$ will act as nucleophile and undergo nucleophilic substitution followed by hydrolysis to give primary alcohol. Hence, statement (c) is incorrect.

(d)

Here, $R^{-}$ will act as nucleophile and undergo nucleophilic addition in presence of a carbonyl geroup, followed by hydrolysis to give secondary alcohol. Hence, statement (c) is incorrect.