Which of the following statements is true?

Options

A. Small amines such as `NH_(3),CH_(3)NH_(2)` and `(CH_(3))_(2)NH` give unsymmetrical cleavage of diborane.
B. Boron hydrides can't be used as high energy fuels.
C. Boron hydrides are readilysed.
D. Borazine hydrolyses to `NH_(3)` and boric at elevated temperature, if heated with water.

Answer

A, C, D

Explanation

(A)`B_(2)H_(6)+2NH_(3)to [H_(2)B(NH_(3))_(2)]^(+)+[BH_(4)]^(-)`
(B)All boron hydrides catch fire in presence of oxygen to liberate a lot of heat energy. Hence, they can be used as high energy fuels.
`B_(2)H_(6)+3O_(2) to B_(2)O_(3)+3H_(2)O , Delta_(C)H^(@)=-1976 kJ mol^(-1)`
( C)`B_(2)H_(6)+6H_(2)O to 2B(OH)_(3) +6H_(2)`
(D)`B_(3)N_(3)H_(6)` hydrolyses slowly. `B_(3)N_(3)H_(6)+9H_(2)O to 3NH_(3) +3H_(3)BO_(3)+3H_(2)O`