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Q.

An element M has 2 valence electrons. Then the formula of its oxide

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a

MO

b

$M_{2} O$

c

$M_{2} O_{3}$

d

${MO}_{2}$

answer is A.

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Detailed Solution

The chemical formula of oxide is finding by Kriss- Cross method.

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Then the formula of Oxide is "MO".

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An element M has 2 valence electrons. Then the formula of its oxide