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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3pb214

Which of the following statements about the structures of tin halides and halide complexes are correct?

A $[SnCl X_{6}] X^{2 -}$ is octahedral with $s p^{3} d^{2}$ hybridisation on tin.
B $SnCl X_{4}$ is a tetrahedral molecule.
CGaseous $SnCl X_{2}$ is bent (V-shaped) because of a lone pair on tin.
D $[SnCl X_{3}] X^{-}$ is trigonal planar.

Answer: A, B, C

SnCl X_{2}

has two bond pairs and one lone pair (bent).

SnCl X_{4}

has four bond pairs (tetrahedral), and

[SnCl X_{6}] X^{2 -}

uses outer

d

orbitals for an octahedron.

[SnCl X_{3}] X^{-}

has three bond pairs and one lone pair, so it is trigonal pyramidal.

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