Arrange in increasing order of extent of hydrolysis `[C Cl_(4),MgCl_(2),AlCl_(3),PCl_(5),SiCl_(4)]`.

Options

A. `C Cl_(4)ltMgCl_(2)ltAlCl_(3)ltSiCl_(4)ltPCl_(5)`
B. `C Cl_(4)ltAlCl_(3)ltMgCl_(2)ltPCl_(5)ltSiCl_(4)`
C. `C Cl_(4)ltSiCl_(4)ltPCl_(5)ltAlCl_(3)ltMgCl_(2)`
D. `C Cl_(4)ltPCl_(5)ltSiCl_(4)ltAlCl_(3)ltMgCl_(2)`

Answer

A

Explanation

Aqueous hydrolysis of `CCl_(4)` is not possible due to absence of vacant orbital on carbon , while hydrolysis of `MgCl_(2), AlCl_(3), SiCl_(4) and PCl_(5)` is possible. Extent of hydrolysis is proportional to the amount of positive formation charge present on the atomic site prone to attack of `H_(2)O` molecules.
`CCl_(4)ltMgCl_(4)ltAlCl_(3)ltSiCl_(4)ltPCl_(5)`