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NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Chemistry
Chapter
p Block Elements (Group 13 & 14)

NTA Abhyas 2020 · Chemistry · p Block Elements (Group 13 & 14)

Diborane reacts with ammonia to initially forms X which on further...

Diborane reacts with ammonia to initially forms X\text{X} which on further heating gives borazine X\text{X} is

Options

  1. ABH3.NH3B{H}_{3}. N{H}_{3}
  2. BB2H6.NH3{B}_{2}{H}_{6}. N{H}_{3}
  3. CB2H6.2NH3{B}_{2}{H}_{6}. 2N{H}_{3}
  4. DNH3BH3NH3N{H}_{3}B{H}_{3}N{H}_{3}

Correct answer

C. B2H6.2NH3{B}_{2}{H}_{6}. 2N{H}_{3}

Step-by-step solution

B2H6+2NH3→B2H6.2NH3{B}_{2}{H}_{6} + 2N{H}_{3} \to {B}_{2}{H}_{6}. 2N{H}_{3}
{\left[{\text{BH}_{2} {\left({\text{NH}_{3}\right)}_{2}\right]}^{+} {\left[{\text{BH}_{4}\right]}^{−} \overset{Δ}{→} \mathop{{B}_{3} {N}_{3} {H}_{6}}_{\text{(Borazine)}} \text{+}{H}_{2}
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