Question

Given below are two statements:

Statement 1: Retardation factor $\left(\mathrm{Rf}\right)$ can be measured in $\mathrm{meter}/\mathrm{centimeter}$

Statement 2: Retardation factor value of a compound remains constant in all solvents

Choose the most appropriate answer from the options given below:

• A. Statement 1 is false but statement 2 is true
• B. Both statement 1 and statement 2 are false
• C. Both statement 1 and statement 2 are true
• D. Statement 1 is true but statement 2 is false

Answer 1

The correct option is B

Both statement 1 and statement 2 are false

Answer : (B)

Explanation for correct option:

${\mathrm{R}}_{\mathrm{f}}=\frac{\mathrm{reference}\mathrm{line}(\mathrm{c}.\mathrm{m})}{\mathrm{Distance}\mathrm{travelled}\mathrm{by}\mathrm{the}\mathrm{solvent}\mathrm{from}\mathrm{reference}\mathrm{line}(\mathrm{c}.\mathrm{m})}$

${\mathrm{R}}_{\mathrm{f}}$ values of different compounds are different. The retardation factor is dimensionless.

Hence option (B) is the correct answer.