When ammonia is added to a cupric salt solution, the deep blue colour is observed it is due to the formation of
${\left[ {Cu{{\left( {OH} \right)}_4}} \right]^{2 - }}$
${\left[ {Cu{{\left( {N{H_3}} \right)}_4}} \right]^{2 + }}$
${\left[ {Cu{{\left( {{H_2}O} \right)}_2}{{\left( {N{H_3}} \right)}_2}} \right]^{2 + }}$
${\left[ {Cu{{\left( {{H_2}O} \right)}_4}} \right]^{2 + }}$
A copper salt is isomorphic with $ZnS{O_4}$, the salt will be
Which ion is not coloured
Essential constituent of an amalgam is
Which $d-$ block element is expected to have highest enthalpy of atomisation, among the following ?
Magnetic moment $2.83\, BM$ is given by which of the following ions ?
(At. nos. $Ti = 22,\,Cr = 24,$ $ Mn = 25,\,Ni = 28$)