Among I) Pure Na2O2II) KO2III) dil solution of Na in NH3(l)IV) Li2O, the coloured and
paramagnetic substance are
II
I,II,III
II,III
I,II,III,IV
O2-1& Na in NH3 have unpaired electrons and coloured
Arrange the following compounds in order of increasing dipole moment. (I) Toluene (II) m - dichlorobenzene (III) o - dichlorobenzene (IV) p - dichlorobenzene