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Q.

The formula of sodium tungstate is Na2WO4 and that of lead phosphate is Pb3(PO4)2. What is the formula of lead tungstate?

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a

Pb3(WO4)4

b

Pb2(WO4)2

c

Pb3(WO4)2

d

PbWO4

answer is A.

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Detailed Solution

detailed_solution_thumbnail

Sodium tungstate is Na2WO4. Thus tungstate ion is WO_4^-^2 and sodium ion is Na+ lead phoosphate is Pb3(PO4)2.
Plumbous ion is Pb+2  and phosphate ion is PO_4^-^3
Formula of lead tungstate will be Pb+2 WO_4^-^2
criss-cross PbWO4

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