Using the given figure, the ratio of $R_{f}$ values of sample A and sample C is $\mathrm{x} \times 10^{-2}$. Value of x is

JEE Main · 2024 · 05 Apr 2024 · Shift 2 · Practical and Analytical Chemistry

Using the given figure, the ratio of

R_{f}

values of sample A and sample C is

x \times 1 0^{- 2}

. Value of x is

Answer: 50

Solution

From the chromatogram, sample A travels 5.0 cm and sample C travels 10.0 cm from the baseline, with the solvent front at 12.5 cm.

R_{f} (A) = \frac{5.0}{12.5} = 0.4, R_{f} (C) = \frac{10.0}{12.5} = 0.8

\frac{R _{f} ( A )}{R _{f} ( C )} = \frac{0.4}{0.8} = 0.5 = 50 \times 1 0^{- 2}

x = 50

JEE Main · 2024 · 05 Apr 2024 · Shift 2 · Integer answer

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