Paris green is
Double salt of copper carbonate and copper nitrate
Double salt of copper acetate and copper arsinite
Double salt of copper acetate and copper sulphate
Double salt of copper and silver nitrate
Transition elements show high melting points. Why ?
A pink coloured salt turns blue on heating. The presence of which cation is most likely ?
Which of the following compounds is not coloured ?
The $3d$ metal ions form coloured compounds because the energy corresponding to the following lies in the visible range of electromagnetic spectrum
Elements which generally exhibit multiple oxidation states and whose ions are usually coloured are