Question:medium
In which of the following reactions, hydrogen is evolved?
I. $\text{Reaction of sodium borohydride with iodine}$
II. $\text{Oxidation of diborane}$
III. $\text{Reaction of boron trifluoride with sodium hydride}$
IV. $\text{Hydrolysis of diborane}$
In which of the following reactions, hydrogen is evolved?
I. $\text{Reaction of sodium borohydride with iodine}$
II. $\text{Oxidation of diborane}$
III. $\text{Reaction of boron trifluoride with sodium hydride}$
IV. $\text{Hydrolysis of diborane}$
I. $\text{Reaction of sodium borohydride with iodine}$
II. $\text{Oxidation of diborane}$
III. $\text{Reaction of boron trifluoride with sodium hydride}$
IV. $\text{Hydrolysis of diborane}$
Show Hint
$\text{B}_2\text{H}_6$ (Diborane) reactions are key. It is a highly reactive, electron-deficient compound. It evolves hydrogen upon hydrolysis (reaction with protic solvents) and is prepared via reduction reactions (like reaction with $\text{NaH}$ or $\text{NaBH}_4$).
Updated On: Mar 30, 2026
- I, IV only
- I, II only
- III, IV only
- I, II, IV only
Show Solution
The Correct Option is A
Solution and Explanation
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