Due to the presence of an unpaired electron free radicals are

S_(2) molecule in vapour state is paramagnetic due to the presence of unpaired electrons is

A free radical is:

If the colours of salts of transition elements are due to the presence of unpaired electrons in the transition metal ions, which of the following ions will be colourless in aqueous solution

Oxygen molecule is .......... due to the presence of ...... unpaired electrons.

Which of the ions is colourless inspite of the presence of unpaired electrons ?