An element X from group 2 of the Periodic Table reacts with Y from group 17 to form a compound. Give the formula of the compound

Q. An element X from group 2 of the Periodic Table reacts with Y from group 17 to form a compound. Give the formula of the compound.

A.            XY2

B.            XY

C.            X2Y

D.            (XY)2

Answer: XY2