Assertion: Superoxide ion is paramagnetic whereas peroxide ion is diamagnetic.
Reason: Superoxide ion `[O=O]^(-)` has one unpaired electron whereas peroxide ion `[O=O]^(-)` has no unpaired electron.

Options

A. If both assertion and reason are true and the reason is the correct explanation of the assertion
B. If both assertion and reason are true but reason is not the correct explanation of the assertion
C. If assertion is true but reason is false
D. If assertion is false but reason is true.

Answer

A

Explanation

`[O=O]^(-)`has`M.Ogt`Configration
`sigmals^(2)sigma**ls^(2),sigma2s^(2)sigma**2s^(2),sigma2p^(2)pi2p_(x)^(2)pi2p_(y)^(2)pi**2p_(x)^(2)pi**2p_(y)^(1)`
` [O=O]^(-)`has configuration
`sigmals^(2)sigma**ls^(2),sigma2s^(2)sigma**2s^(2),sigma2p^(2)pi2p_(x)^(2)pi2p_(y)^(2)pi**2p_(x)^(2)pi**2p_(y)^(x)`