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Diborane MCQ - Practice Questions with Answers

Edited By admin | Updated on Sep 25, 2023 25:24 PM | #NEET

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  • 17 Questions around this concept.

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QuestionEASY

How many isomeric disubstituted borazine B3N3H4X2 are possible?

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ln⁡B2H6

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Which of the following structure is similar to graphite?

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B2H6+NH3→A→ΔB. The product B is

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Which of the following is electron-deficient ?

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Concepts Covered - 0

Diborane

The simplest boron hydride known is diborane. B2H6 is prepared by the following methods:

  • Laboratory Method: In the laboratory, it is prepared by the reaction of sodium borohydride with iodine in a high boiling polyether solvent(CH3OCH2CH2)2O.
    2 \mathrm{NaBH}_{4}\: +\: \mathrm{I}_{2} \stackrel{\text { Polyether }}{\longrightarrow} \mathrm{B}_{2} \mathrm{H}_{6}\: +\: 2 \mathrm{NaI}\: +\: \mathrm{H}_{2}
  • Industrial Method: 
    2 \mathrm{BF}_{3}\: +\: 6 \mathrm{LiH} \stackrel{450 \mathrm{K}}{\longrightarrow} \mathrm{B}_{2} \mathrm{H}_{6}+\mathrm{LiF}
  • From Boron Halides:
    4 \mathrm{BX}_{3}+3 \mathrm{LiAlH_{4}}\: \rightarrow 2 \mathrm{B}_{2} \mathrm{II}_{6}+3 \mathrm{LiX}+3 \mathrm{AlX}_{3}
  • When boron halides and excess of hydrogen undergo reaction by passing silent electric discharge at low pressure, B2H6 is formed.
     

Study other Related Concepts

Diborane Current Topic

Physical Properties of Boron Family
Anomalous Behaviour of Boron
Diagonal Relationship of B and Si
Chemical Properties of Boron Family
Diborane
Orthoboric Acid
Borax Formula
Group 14 Elements (Carbon Family)
Allotropes of Carbon
Carbon monoxide and carbon dioxide

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