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Question

In the reaction 2X+B2H6[BH2(X)2]+[BH4], the amine(s) X is(are):

A
NH3
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B
CH3NH2
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C
(CH3)2NH
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D
(CH3)3N
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Solution

The correct options are
A NH3
B (CH3)2NH
D CH3NH2
Amines add to diborane to form addition compound which contains a complex ion.

In the reaction, 2X+B2H6[BH2(X)2]+[BH4]

the amines (X) that can be used are NH3, CH3NH2 and (CH3)2NH

Trimethylamine, cannot be used as it is bulky.

Options A, B and C are correct.

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