The relative basic character of the following is

Options

A. `ClO^(-) lt ClO_(2)^(-) lt ClO_(3)^(-) lt ClO_(4)`
B. `ClO_(4)^(-) lt ClO_(3)^(-) lt ClO_(2)^(-) lt ClO^(-)`
C. `ClO_(3)^(-) lt ClO_(4)^(-) lt ClO_(2)^(-) lt ClO^(-)`
D. `ClO_(2)^(-) lt ClO^(-) lt ClO_(3)^(-) lt ClO_(4)^(-)`

Answer

B

Explanation

The basic character of same element which is in different oxidation states decreases with increase in oxidation number
`overset (+7) (ClO_(4)^(-))lt overset (+5) (ClO_(3)^(-)) lt overset (+3) (ClO_(2)^(-)) lt overset (+1) (ClO^(-))`