Which of the following species is not stable? [2019]

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Solution

Q.
Which of the following species is not stable [2019]

1 ${[{SiCl}_{6}]}^{2 -}$

2 ${[{SiF}_{6}]}^{2 -}$

3 ${[{GeCl}_{6}]}^{2 -}$

4 ${[Sn {(OH)}_{6}]}^{2 -}$

Ans.
(1)

${[{SiCl}_{6}]}^{2 -}$ is not stable due to steric hindrance by large sized $Cl$ atoms.

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