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arun-rashi (1128)

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CCl₄ cannot reacts with water because it does not contain vacant orbital for attact of nucleophile water but SiCl₄ easily reacts with water because it has vacant d-orbital and form Si(OH)₄ which finally form SiO₂(silica).remember CCl₄ reacts with water at high temperature because at high temerature some higher orbital are used to form COCl₂ posgene poisonous gas.NF₃ also cannot undergo hydrolysis due to absence of vacant orbital.PF₃ and PF₅ also cannot undergo hydrolysis.

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