Question

An alkali metal hybride `(NaH)` reacts with diborane in Y to give a tetrahedral compound Z, which is extensively used as reducing agent in organic synthesis. The Y and Z in the above reaction are
A. `C_(2)H_(6), C_(2)H_(5)Na`
B. `C_(2)H_(5)-O-C_(2)H_(5), NaBH_(4)`
C. `NH_(3), B_(3)N_(3)H_(6)`
D. `C_(3)H_(8), C_(3)H_(7)Na`

Answer 1

Correct Answer - B
The required reaction is
`2NaH+B_(2)H_(6)underset((Y))(("In "C_(2)H_(5)-O-C_(2)H_(5)))rarr underset((Z))(2Na^(+)[BH_(4)]^(-)) ("tetrahedral " BH_(4)^(-) " ion")`