An element X combines with oxygen to form an oxide XO. This oxide is electrically con¬ducting. Write the formula of the compound formed when X reacts with chlorine.
An element X combines with oxygen to form an oxide XO

Q. An element X combines with oxygen to form an oxide XO. This oxide is electrically con¬ducting. Write the formula of the compound formed when X reacts with chlorine.

A.            XCl3

B.            XCl

C.            XCl2

D.            XCl5

Answer: XCl2
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