When ammonia is added to a cupric salt solution, the deep blue colour is observed it is due to the formation of
${\left[ {Cu{{\left( {OH} \right)}_4}} \right]^{2 - }}$
${\left[ {Cu{{\left( {N{H_3}} \right)}_4}} \right]^{2 + }}$
${\left[ {Cu{{\left( {{H_2}O} \right)}_2}{{\left( {N{H_3}} \right)}_2}} \right]^{2 + }}$
${\left[ {Cu{{\left( {{H_2}O} \right)}_4}} \right]^{2 + }}$
Electrons in a paramagnetic compound are
Which of the following will be coloured ion :
Identify the correct option
Mercury is transported in metal containers made of
The correct formula of permanganic acid is