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For adsorption of a gas on a solid, the plot of log x/m vs log p is linear with slope equal to (n being whole number).

1. k
2. log k
3. n
4. 1/n

Correct answer: 1/n

Solution

The Freundlich adsorption isotherm equation is log(x/m) = log k + (1/n) log p, where the slope of the plot is 1/n.

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