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Chemistry - pyq 2023

 Q. Which of the following statement is correct for paper chromatography?

                                                        (JEE mains 2023)

1. Water present in the mobile phase gets absorbed by the paper which then forms the stationary phase.


2. Water present in the pores of the paper forms the stationary phase. 


3. Paper sheet forms the stationary phase.


4.Paper and water present in its pores together form the stationary phase.

Ans: (2)

Sol. In paper chromatography, a special quality paper known as chromatography paper is used. Paper contains water trapped in it, which acts as the stationary phase.

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