MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic Chemistryp-Block (group 13 and 14)X and B
Identify X and Y in the following reaction. NaBH 140ºC C H Cl BCl NH Cl X Y + ¾¾¾¾® ¾¾¾¾®
A.X = NaBO2, Y = B2O3
B.X = Na2B4O7, Y = H3BO3
C.X = BN, Y =
D.X = B3N3H3Cl3, Y = B3N3H6✓ Correct
Explanation
Boron trichloride on reaction with ammonium chloride gives trichlorido borazine, which upon subsequent re- duction yields the borazine. 4 3 3 3 3 3 3 3 3 3 4 3 3 6 3 3 9 (borazine) NH Cl BCl B N H Cl HCl B N H Cl NaBH B N H + ® + + ® Borazine is also called as inorganic benzene. The struc- ture of borazine is as follows:
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