A) \[{{M}^{-}}<{{M}^{2-}}<\text{ }{{M}^{3-}}<{{M}^{4-}}\]
B) \[{{M}^{-}}>{{M}^{2}}^{-}>{{M}^{3}}^{-}>{{M}^{4}}^{-}\]
C) \[{{M}^{-}}<{{M}^{2-}}>{{M}^{3-}}<{{M}^{4-}}\]
D) \[{{M}^{4-}}<{{M}^{2-}}<{{M}^{3-}}<{{M}^{-}}\]
Correct Answer: B
Solution :
[b] Higher the positive charge the greater is the EN and higher the negative charge the lesser is the EN. So, EN order is \[{{M}^{-}}>{{M}^{2-}}>{{M}^{3-}}>{{M}^{4+}}\]
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