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JEE Main 20211 SeptemberEvening Shift
Exam
JEE Main
Year
2021
Date
1 September
Shift
Evening Shift
Subject
Chemistry
Chapter
Aldehydes and Ketones

JEE Main 2021 · 1 September · Evening Shift · Chemistry · Aldehydes and Ketones

Experimentally reducing a functional group cannot be done by which...

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

Options

  1. AZn/H2OZn / {H}_{2}O
  2. BPt−C/H2Pt - C / {H}_{2}
  3. CPd−C/H2Pd - C / {H}_{2}
  4. DNa/H2Na / {H}_{2}

Correct answer

D. Na/H2Na / {H}_{2}

Step-by-step solution

Sodium reacts with Hydrogen to form sodium hydride.

2Na+H2→2NaH2Na + {H}_{2} \to 2NaH

So Na/H2Na / {H}_{2} cannot be used for reduction of functional groups.

All other reagents are used as reducing agent.

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