1.

X is a pale yellow solid. It hydrolyses to POCl_(3) in moist air and finally gets converted into phosphoric acid. Z exists as an ionic solid. The total number of atoms present in its cation is.

Answer»

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Solution :`{:(""underset((X))(PCl_(5))+H_(2)O rarr POCl_(3)+ 2 HCl),(POCl_(3)+3H_(2)O rarr H_(3)PO_(4)+3HCl):}`
In the solid state, `PCl_(5)` (X) exists as `[PCl_(4)]^(+) [PCl_(6)]^(-)` in which the cation has 5 atoms (4 Cl + 1 P).


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