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AIIMS 2011
Exam
AIIMS
Year
2011
Subject
Chemistry
Chapter
p Block Elements (Group 15, 16, 17 & 18)

AIIMS 2011 · Chemistry · p Block Elements (Group 15, 16, 17 & 18)

Iodine oxidises sodium borohydride to give

Iodine oxidises sodium borohydride to give

Options

  1. AB2H6\mathrm{B}_2 \mathrm{H}_6
  2. Bsodium hydride
  3. CHI\mathrm{HI}
  4. DI3−\mathrm{I}_3^{-}

Correct answer

A. B2H6\mathrm{B}_2 \mathrm{H}_6

Step-by-step solution

The oxidation of sodium borohydride with iodine in diglyme gives diborane. 2 NaBH4+I\mathrm{NaBH}_{4}+ \mathrm{I}}_{2} \stackrel{ Diglyme \text{ Diglyme }}{\longrightarrow} B2H\mathrm{B}_{2} \mathrm{H}}_{6}+2 NaI+H2\mathrm{NaI}+\mathrm{H}_{2}
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