Diborane reacts with ammonia under different | vedclass

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Question

(B) Diborane $(B_2H_6)$ reacts with ammonia $(NH_3)$ under different conditions to yield various products:$1$. At low temperature, it forms an ionic a

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$B_{12}H_{12}$

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(B) Diborane $(B_2H_6)$ reacts with ammonia $(NH_3)$ under different conditions to yield various products:$1$. At low temperature, it forms an ionic addition product: $B_2H_6 + 2NH_3 \rightarrow [BH_2(NH_3)_2]^+ [BH_4]^-$ (often written as $B_2H_6 \cdot 2NH_3$).$2$. At high temperatures, it forms borazine $(B_3N_3H_6)$, which is known as inorganic benzene: $3B_2H_6 + 6NH_3 \rightarrow 2B_3N_3H_6 + 12H_2$.$3$. At very high temperatures, it forms boron nitride $((BN)_n)$, which is isoelectronic with graphite: $B_2H_6 + 2NH_3 \rightarrow 2BN + 6H_2$.Therefore, $B_{12}H_{12}$ is not formed in the reaction between diborane and ammonia.

Column-$I$	Column-$II$
$A$. $Bi^{+3} \to (BiO)^{+}$	$P$. Heat
$B$. $[AlO_2]^{-} \to Al(OH)_3$	$Q$. Hydrolysis
$C$. $SiO_4^{-4} \to Si_2O_7^{-6}$	$R$. Acidification
$D$. $(B_4O_7)^{-2} \to [B(OH)_3]$	$S$. Dilution with water

Diborane reacts with ammonia under different conditions to give a variety of products. Which one among the following is not formed in these reactions?

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Column-$I$ Column-$II$

$A$. $Bi^{+3} \to (BiO)^{+}$ $P$. Heat

$B$. $[AlO_2]^{-} \to Al(OH)_3$ $Q$. Hydrolysis

$C$. $SiO_4^{-4} \to Si_2O_7^{-6}$ $R$. Acidification

$D$. $(B_4O_7)^{-2} \to [B(OH)_3]$ $S$. Dilution with water

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