Unsaturated organic compounds are identified by decolourization of

 Unsaturated organic compounds are identified by decolourization of

A. silver bromide and potassium tetraoxomanganate (VII) solution

B. bromine water and acidified potassium tetraoxomanganate (VII) solution

C. silver bromide solution and bromine water

D.  bromine water and alkaline potassium tetraoxomanganate (VII) solution

The correct answer is:

B. bromine water and acidified potassium tetraoxomanganate (VII) solution ✅

Explanation:

• Unsaturated compounds (alkenes and alkynes) contain C=C or C≡C bonds.

• They decolorize bromine water (orange → colorless) due to addition across the double/triple bond.

• They also react with acidified KMnO₄ (potassium permanganate) to form a colorless or brown solution, indicating oxidation.

This is a standard test for unsaturation in organic chemistry.

PQN: 30