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Four gases, A, B, C and D have critical temperatures 5.3, 33.2, 126.0 and 154.3K respectively. For their adsorption on a fixed amount of charcoal, the correct order is :

1. C > D > B > A
2. C > B > D > A
3. D > C > B > A
4. D > C > A > B

Correct answer: D > C > B > A

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