Colour Of Transition Elements - Practice Questions & MCQ

Zinc pieces are added to the acidified solution of SO₃^-2. AGs liberated can :

An ammoniacal metal salt solution gives a brilliant red precipitate on addition of dimethylglyoxime. The metal ion is:

The orange colour of $\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7$ and purple colour of $\mathrm{KMnO}_4$ is due to

Which of the following compounds show color due to d-d transition?

Which of the following species is colourless-

Generally, transition elements and their salts are coloured due to the presence of unpaired electrons in metal ions. Which of the following compounds are coloured?

(i) $\mathrm{KMnO}_4$
(ii) $\mathrm{Ce}\left(\mathrm{SO}_4\right)_2$
(iii) $\mathrm{TiCl}_4$
(iv) $\mathrm{Cu}_2 \mathrm{Cl}_2$

The color of Mohr's salt $\left(\mathrm{NH}_4\right)_2 \mathrm{SO}_4 \mathrm{Fe}\left(\mathrm{SO}_4\right) \cdot 6 \mathrm{H}_2 \mathrm{O}$  is :