First slide

Diborane

Question

Diborane does not liberate hydrogen gas in its reaction with

Moderate

A

H₂O
B

NH₃ / at low temperature
C

NH₃ / at high temperature
D

KOH(dilute)

Solution

At low temperature, diborane reacts with ammonia to form diammoniate of diborane.
$B_{2} H_{6} + 2 {NH}_{3} \overset{120^{0} c}{\to} {[{BH}_{2} {({NH}_{3})}_{2}]}^{+} {[{BH}_{4}]}^{-}$

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