Question

Among KO2 BaO2 and , unpaired electron is present in 

Solution

Correct option is

 

Only KO2 has an unpaired electron,

SIMILAR QUESTIONS

Q1

The solubility of hydroxides, fluorides or oxalates of the metal of Group IIA

Q2

CO2 cannot be obtained by heating:

Q3

Na and Li are placed in dry air. We get :

Q4

Which cannot be used to generate H2?

Q5

Which is a pair of paramagnetic species?

Q6

Which of the following alkali metal halides has the lowest lattice energy?

Q7

The hydration energy of Mg2+ is greater than that of

Q8

For two ionic solids CaO and KI, identify the wrong statement among the following?

Q9

The stability of the following alkali metal chlorides follows the order:

Q10

The product, which is not formed when sodium thiosulphate is added to a natural solution of potassium permanganate, is