Which of the following statements are co...

Which of the following statements are correct?

A. Potassium superoxide is diamagnetic in nature

B. The thermal stability of hydroxides of Group 1 decreases on moving down the group

C. Potassium carbonate cannot be prepared by Solvay process as potassium bicarbonate is highly soluble in water

D. The solubility of bicarbonates of Group 1 is less than the corresponding carbonates.

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The correct Answer is:

C, D

The superoxide `O_(2)^(-)` contains one unpaired electron, so it is paramagnetic.
The thermal stability increase down the group.

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