1.

Which one of the following molecular hydrides acts as a Lewis acid ?

Answer»

`CH_(4)`
`NH_(3)`
`H_(2)O`
`B_(2)H_(6)`

Solution :`B_(2)H_(6)` is ELECTRON - deficient

This is because BORON do not have SUFFICIENT valence electrons to from conventional two electron bond with all the H-atoms.


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