The formula of carbonate of a metal M is M2CO3. What is the formula for phosphate of M?
It is given that carbonate of a metal M is M2CO3.
By applying criss cross method, we can know the valency of “M”:
Hence, the valency of “M” is +1
Now, formula for phosphate of metal M:
Formula: M3PO4
Thus, the formula for phophate of metal is M3PO4.