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Q.

A metal M forms on oxide ${(M}_{2} O_{3})$ . How many valence electrons does the metal have.

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a

2

b

1

c

3

d

4

answer is C.

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Detailed Solution

Metal oxide -

M_{2} O_{3}

means valency of ‘M’ is three and oxygen is two.

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A metal M forms on oxide (M2O3) . How many valence electrons does the metal have.