The number of unpaired electrons in `O_2` is ……

Total number of unpaired electrons in O_2^(2-)

There are three unpaired electrons in [Co(H_(2)O)_(6) ]^(2+) and calculated value of magnetic moment is 3 · 87 BM which is quite different from the experimental value of 4·40 BM. This is because of :

The number of atoms in hcp unit cell is………… .

Based on VSEPR theory, the number of 90 degree F-B-F angles in BrF_5 is ……

Hydrogen peroxide is ……..

Hydrogen peroxide is ……..

Hydrogen peroxide is obtained by the electrolysis of ………

Hydrogen peroxide is obtained by the electrolysis of ………

The set of values of sec^(-1)(1/2) is "……….."