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AP EAMCET2010Chemistryp Block Elements (Group 13 & 14)

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

Options

  1. AB ₂ H ₆ 2 NH ₃
  2. BB ₁₂ H ₁₂
  3. CB ₃ ~N ₃ H ₆
  4. D( BN )_n

Correct answer

B. B ₁₂ H ₁₂

Step-by-step solution

Diborane reacts with ammonia and gives different products under different reaction conditions as B ₂ H ₆+ (excess) NH ₃ temperature at low addition product B ₂ H ₆ 2 NH ₃ B ₂ H ₆+ (excess) NH ₃ high temperature boron nitride (resembles with graphite) ( BN )_n 1 ~B ₂ H ₆ : + 2 NH ₃ high temperature borazine (inorganic benzene) B ₃ ~N ₃ H ₆ Thus, B ₁₂ H ₁₂ is not the product of reaction between diborane and ammonia.

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