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JEE Main2016Chemistryp Block Elements (Group 13 & 14)Actual

Identify the reaction which does not liberate hydrogen

Options

  1. AReaction of lithium hydride with B 2 H 6 .
  2. BElectrolysis of acidified water using Pt   electrodes.
  3. CReaction of zinc with aqueous alkali.
  4. DAllowing a solution of sodium in liquid ammonia to stand.

Correct answer

A. Reaction of lithium hydride with B 2 H 6 .

Step-by-step solution

LiH   react with B 2 H 6 to produce boron lithium hydride. The reaction proceeds in the medium of ester and complex form. 2 L i H + B 2 H 6 → 2 L i [ B H 4 ] So do not liberate H 2 gas.

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