JEE Main20211 Sep 2021Evening ShiftChemistryAldehydes and KetonesActual

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

Options

AZn / H 2 O
BPt - C / H 2
CPd - C / H 2
DNa / H 2

Correct answer

D. Na / H 2

Step-by-step solution

Sodium reacts with Hydrogen to form sodium hydride. 2 Na   +   H 2   → 2 NaH So Na / H 2 cannot be used for reduction of functional groups. All other reagents are used as reducing agent.

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