Which tetrahalide does not act as Lewis acid? (A) \( \mathrm{CCl}_{4} \) (B) \( \mathrm{SiF}_{4}...

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Which tetrahalide does not act as Lewis acid?
(A) \( \mathrm{CCl}_{4} \)
(B) \( \mathrm{SiF}_{4} \)
(C) \( \mathrm{GeCl}_{4} \)
(D) \( \mathrm{SnCl}_{4} \)
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