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Q.

The element X has valency 3. The element Y has valancy 2. The chemical formula of the

            compound formed when X and Y are combined together?

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a

X2Y2

b

X3Y3

c

X2Y3

d

XY

answer is B.

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Detailed Solution

As per the criss cross method the chemical formula is X2Y3

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The element X has valency 3. The element Y has valancy 2. The chemical formula of the            compound formed when X and Y are combined together?