1.

If the ratio of co-ordination no `P` to that of `Q` be `Y:Z` , then the formula of the solid isA. `P_(Y)O_(Z)`B. `P_(Z)O_(Y)`C. `P_( zY)O_(YZ)`D. None

Answer» Correct Answer - b
Since the ratio of the coordination no `P` to that of `Q` is `Y:Z` i.e. `P` is surrounding by `Y` atoms of `Q` and `Q` is surrounding by `Z` atoms to `P`
i.e. no of atom of `P ` is `Z`
and no of atoms of `QW` is `Y`
So, the formula is `P_(2)Q_(3)`


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