Q16 / 160 · TS EAMCET 2021 (05 Aug Shift 1) · Chemistry

Match the following.
  Column-1
Reaction
  Column-2
Main product
A B2H6+2CO⟶ I B2O3
B B2H6+3O2⟶ II 2BH3·CO
C B2H6+6H2O⟶ III 2H3BO3
    IV 2BH2(CO)
    V 2HBO2

The correct match is

  • A
    A B C
    IV I III
  • B
    A B C
    II III V
  • C
    A B C
    IV III I
    .
  • Correct answer
    D
    A .B C
    II I III

Solution

Boron hydride is an electron deficient species so, it act like and Lewis acid and carbon monoxide act as a Lewis base and form a co-ordinate bond. 

B2H6+CO ⟶ 2BH3·CO

It is oxidised with air.

B2H6+3O2⟶ B2O3 + 3 H2O

It is hydrolysed with water to give

B2H6+6H2O⟶ 2H3BO3 + 6 H2

Hence, the correct answer is option: 'D'.

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