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Question

The molecule which is NOT hydrolysed by water at 25oC is?

A
AlCl3
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B
SiCl4
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C
BF3
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D
SF6
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Solution

The correct option is D SF6
In SF6 sulphur is surrounded by 6 atoms and it does not vacant d-orbitals.Due to steric reasons SF6 is exceptionally stable and thus hinder the attack of water molecules.

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