Answer:
2
Explanation:
The compounds XCl₂ and X₃N₂ shows that the valency of X is 2. If they are ionic compounds then X is a metal. The metals having valency=2 mostly reside in group-2.
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I think it is B
Acceleration due to gravity is reduced to half its value on the earth's surface at an altitude of 2.65×106 m
Sorry pa Wala. Thank God
