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Question

Diborane is a Lewis acid forming addition compound B2H62NH3 with NH3, a Lewis base. This -

A
Is ionic and exists as [BH2(NH3)2]+ and [BH4] ions
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B
On heating, is converted into borazine, B3N3H6 (called inorganic benzene)
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C
Both are correct
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D
None is correct
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Solution

The correct option is C Both are correct

(a) Diborane is a lewis acid it forms an addition product B2H6.2NH3 on reaction with NH3 which is ionic and it exsists as: [BH2(NH3)2]+ and [BH4] ions.

(b) On heating, it gets converted into Borazine which is also known as inorganic benzene.
B2H6.2NH3200oC−−2B3N3H6+12H2

Therefore, the correct option is (c).

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