1.

Predict the correctshape of BH_(4)^(-)

Answer»

PYRAMIDAL, `SP^(3)`
octahedral, `sp^(3)d^(2)`
tetrahedral, `sp^(3)`
NONE of the above

Solution :Biin `BH_(4)^(-)`has fourelectron pairs, therefore, B is `sp^(3)`-hybridizedand `BH_(4)^(-)`is tetrahedral.


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