Question

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

A. KMnO₄
B. Ce(SO₄)₂
C. TiCl₄
D. Cu₂C₂

Answer 1

For compounds to be colored, they should contain transition elements with unpaired electrons. The colored compounds in the provided options are KMnO4, Ce(SO4)2, and Cu2C2. The correct answer is option A. B. and D.

Step-by-step explanation:

Transition elements and their salts are colored due to the presence of unpaired electrons in metal ions. Therefore, compounds that contain transition elements with unpaired electrons will generally be colored.

Out of the given compounds, the colored ones are:

• KMnO4 - Potassium permanganate
• Ce(SO4)2 - Cerium(IV) sulfate
• Cu2C2 - Copper(I) acetylide