If the valency of both Calcium and Sulphate ion is 2, the formula of calcium sulphate will be

If the valency of both Calcium and Sulphate ion is 2, the formula of c

1.	If the valency of both Calcium and Sulphate ion is 2, the formula of calcium sulphate will be
A.	CaSO4
B.	CaSO3
C.	Ca2SO4
D.	Ca2(SO4)2
Answer» B. CaSO3