First slide

Diborane

Question

What are X and Y in the following reaction?
$3 B_{2} H_{6} + 6 {NH}_{3} ⟶ 3 [X]^{+} {[{BH}_{4}]}^{-} \overset{Δ}{⟶} 12 H_{2} + 2 Y$

Moderate

A

X-B₃N₃H₆; Y-[BH₂[NH₃)₂]⁺
B

X-[BH₂[NH₃)₂]⁺; Y-B₃N₃H₆
C

X-[BH[NH₃)₃]⁺; Y-B₃N₃H₆
D

X-B₃N₃H₆; Y-[BH[NH₃)₃]⁺

Solution

Diborane reacts with ammonia initially gives $B_{2} H_{6} . 2 {NH}_{3}$ which is formulated as ${[{BH}_{2} {({NH}_{3)})}_{2}]}^{+} {[{BH}_{4}]}^{-}$ and on further heating gives borazine $B_{3} N_{3} H_{6}$ is also known as inorganic benzene

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