Q.

The formula of an ionic compound formed between 2nd group element (M) and 17th group element (X) is

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a

MX

b

M2X

c

MX2

d

MX3

answer is C.

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Detailed Solution

Valence of ‘M’ =2 ;Valency of ‘X’ = 8-7 = 1 ;Formula of the compound = MX2 ;
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The formula of an ionic compound formed between 2nd group element (M) and 17th group element (X) is