Question

Which forms coloured salts ?
(a) Metals
(b) Non-metals
(c) p-Block elements
(d) Transition elements

Answer 1

Answer:

p-Block elements form coloured salts

Answer 2

(d) Transition elements

Explanation:

Transition metal ions generally possess one or more unpaired electrons. When visible light falls on a transition metal compound or ion, the unpaired electrons present in the lower energy d-orbital get promoted to high energy d-orbitals, called d-d transition, due to the absorption of visible light. Since, the energy involved in d-d transition is quantized, only a definite wavelength gets absorbed, remaining wavelengths present in the visible region gets transmitted. So transmitted light shows some color complementary to the absorbed color. Transition elements form colored salts.

Option D is the answer.