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Q.

In which of the following molecules, vacant orbitals take part in hybridization?

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a

$H_{3} {BO}_{3}$

b

$B_{2} H_{6}$

c

$H_{3} {PO}_{3}$

d

${Al}_{2} {Cl}_{6}$

answer is A, B.

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Detailed Solution

$B_{2} H_{6} and {Al}_{2} {Cll}_{6}$ involve vacant orbital in hybridization i.e., why they exist in the form of dimer.

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