JEE Chemistry 2025 Question with Solution

Given: Two statements about partition chromatography and paper chromatography.

Find: Which statement combination is correct.

In partition chromatography, the stationary phase is a thin liquid film supported on an inert material. Therefore, Statement (I) is true.

In paper chromatography, the stationary phase is not the paper material itself. It is the water held in the fibers of the paper, while the paper acts as a support. Therefore, Statement (II) is false.

Hence, the correct conclusion is: Statement I is true but Statement II is false.

The correct option is B.

Given:

• Statement (I): In partition chromatography, the stationary phase is a thin film of liquid present in the inert support.
• Statement (II): In paper chromatography, the material of paper acts as a stationary phase.

Find: The correct option.

Step 1: Understand the basis of partition chromatography. In partition chromatography, separation occurs because components distribute themselves between two immiscible phases. The stationary phase is a thin film of liquid supported on an inert solid material.

So, Statement (I) is true.

Step 2: Understand the stationary phase in paper chromatography. In paper chromatography, the stationary phase is water adsorbed or trapped in the cellulose fibers of the paper. The paper itself serves only as a support.

So, Statement (II) is false.

Conclusion: Statement (I) is true but Statement (II) is false.

Therefore, the correct option is B.