In the given TLC, the distance of spot A and B are $5 c m$ and $7 c m$ , from the bottom of the TLC plate, respectively. $R_{f}$ value of B is $x \times 1 0^{- 1}$ times more than A. The value of $x$ is _____.

Question

In the given TLC, the distance of spot A and B are 5 c m and 7 c m , from the bottom of the TLC plate, respectively. R f ​ value of B is x × 1 0 − 1 times more than A. The value of x is _____.

TestHub · Accepted Answer

R f ​ = Distance moved by solvent from base line Distance moved by substance from base line ​ Base line ​ ( R f ​ ) A ​ = 8 4 ​ ( R f ​ ) B ​ = 8 6 ​ ​ ( R f ​ ) A ​ ( R f ​ ) B ​ ​ = 8 6 ​ × 4 8 ​ ​ ​ ​ ( R f ​ ) B ​ = 1.5 ( R f ​ ) A ​ x = 15

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