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AP EAMCET201920 Apr 2019Evening ShiftChemistryp Block Elements (Group 13 & 14)Actual

In the following reactions: aligned & B ₂ H ₆+ NH ₃ (excess) X+ H ₂ & NaH + BF ₃ 450 ~K Y+ NaF & B ₂ H ₆+ H ₂ O Z + H ₂ aligned X, Y and Z are respectively.

Options

  1. AB ₂ H ₆, LiBH ₂, H ₃ BO ₃
  2. BB ₃ ~N ₃ H ₆, ~B ₂ H ₆, H ₃ BO ₃
  3. C( BN )_n, LiBH ₄, HBO ₂
  4. DB ₂ H ₆, ~B ₂ H ₆, HBO ₂

Correct answer

B. B ₃ ~N ₃ H ₆, ~B ₂ H ₆, H ₃ BO ₃

Step-by-step solution

Therefore, aligned & X= B ₃ ~N ₃ H ₆ & Y= B ₂ H ₆ & Z= H ₃ BO ₃ aligned Hence, option (b) is correct.

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