JEE MAIN - Chemistry (2021 - 25th July Morning Shift - No. 10)

Which one of the following compounds of Group-14 elements is not known?
[GeCl6]2$$-$$
[Sn(OH)6]2$$-$$
[SiCl6]2$$-$$
[SiF6]2$$-$$

Explanation

[SiCl6]2$$-$$ does not exist due to steric crowding of surrounding atoms.

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