1.

In which of the following process(es) hybridisation of underlined atom does not change?

Answer»

`ul(N)H_(3)+BF_(3)rarrH_(3)N.BF_(3)`
`ul(Si)F_(4)+2F^(-)rarr[SiF_(6)]^(2-)`

`H_(3)ul(B)O_(3)OVERSET(OH^(-))rarr[B(OH)_(4)]^(-)`

Solution :`underset(sp^(3))(ul(Si)F_(4))rarrunderset(sp^(3)d^(2))(ul(Si)F_(6)^(2-))`


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