Q6 / 90 · JEE Main 2021 (01 Sep Shift 2) · Chemistry

Experimentally reducing a functional group cannot be done by which one of the following reagents ?

A
$Zn / H_{2} O$
B
$Pt - C / H_{2}$
C
$Pd - C / H_{2}$
Correct answer
D
$Na / H_{2}$

Solution

Sodium reacts with Hydrogen to form sodium hydride.

$2 Na + H_{2} \to 2 NaH$

So $Na / H_{2}$ cannot be used for reduction of functional groups.

All other reagents are used as reducing agent.

Hence, the correct answer is option: 'D'.

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