14 ) In MgxNy then , x and y are (Criss cross valency)
(a) x=2,y=2
(b) x=2,y=3
(c) x=3,y=3
(d) x=3,y=2
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Answer:
d
Explanation:
valency of Mg is +2
valency of N is -3
formula is Mg3N2
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