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Question

Correct formula of a trivalent metal nitride is_________.

A
M3N2
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B
M3N3
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C
MN
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D
M2N3
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Solution

The correct option is D MN
Valency of metal=3. Valency of N=3
(Image)
Thus formula is MN
A trivalent element is one that can form up to three bonds to other elements. Nitrogen is the most common trivalent non-metal and aluminum is the most common trivalent metal.

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