1.

An alkali metal hydride (NaH) reacts with diborane in 'A' to give a tetrahedral complex 'B' which is extensivelyused as reducingagentin organic synthesis. The compounds 'A' and 'B'respectivelyare

Answer»

`CH_(3)COCH_(3)` and `B_(3)N_(3)H_(6)`
`(C_(2)H_(5))_(2)O` and `NaBH_(4)`
`C_(2)H_(6)` and `C_(2)H_(5)NA`
`C_(6)H_(6)` and `NaBH_(4)`

Solution :`UNDERSET(" Sod. HYDRIDE ")(2NaOH) + B_(2)H_(6) overset((C_(2)H_(5))_(2)O (A))underset(" Diethyl ether ")rarr underset((" Tetrahedral complex "))underset(" Sod. Borohydride (B) ")(2Na^(+)[BH_(4)]^(-))`


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