Which of the following statements about paper and gas chromatography is correct?

A long retention time in gas chromatography is indicative of a substance with a strong adsorption on to the stationary phase

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The

R_{f}

and

R_{t}

values of a substance are determined solely by the interaction of the substance with the stationary phase

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A high Rf value is indicative of a substance that adsorbs strongly onto the stationary phase

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A substance with a long retention time in gas chromatography is likely to have a high

R_{f}

value in paper chromatography

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Solution

The correct options are
A A long retention time in gas chromatography is indicative of a substance with a strong adsorption on to the stationary phase
B The $R_{f}$ and $R_{t}$ values of a substance are determined solely by the interaction of the substance with the stationary phase
A substance will travel freely on stationary phase when intecution of substances is less with stationary phase. $R_{f}$ will be more only when substance interout less with stationary phase. If substance will bind with.
So option A and B is correct.

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