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Solution


Q.

From the figure of column chromatography given below, identify incorrect statements.

A. Compound ‘c’ is more polar than ‘a’ and ‘b’

B. Compound ‘a’ is least polar

C. Compound ‘b’ comes out of the column before ‘c’ and after ‘a’

D. Compound ‘a’ spends more time in the column

Choose the correct answer from the options given below:                 [2023]
1 A, B and D only  
2 B and D only  
3 B, C and D only  
4 A, B and C only  

Ans.

(4)

As the chromatogram, degree of polarity is a > b > c.
Statements A and B are incorrect, as ‘b’ comes out before ‘c’; the statement C is also incorrect. As ‘a’ is the most polar, so it spends most time. Hence, A, B, C are incorrect statements.