Q.

The chemical formula of zinc phosphate is

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a

ZnPO4

b

Zn(PO4)2

c

Zn3(PO4)2

d

Zn2PO4  

answer is C.

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Detailed Solution

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The chemical formula of zinc phosphate is Zn3(PO4)2.
Zinc phosphate contains three Zn2+   and two PO43-

As we know,
Charge on zinc  =+2
Charge on phosphate =-3
So, the charges over the ions get cross-multiplied to form a chemical formula.

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