MCQ
Formula of a metallic oxide is $MO.$ The formula of its phosphate will be
- A${M_2}{\left( {P{O_4}} \right)_2}$
- B$M\left( {P{O_4}} \right)$
- C${M_2}P{O_4}$
- ✓${M_3}{\left( {P{O_4}} \right)_2}$
✓
Answer
Correct option: D.
${M_3}{\left( {P{O_4}} \right)_2}$
(d) Valency of metal is $+ 2$ by formula $MO$ so its phosphate would be ${M_3}{(P{O_4})_2}$ because valency of $[P{O_4}]$ is $-3$.
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