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The critical temperature of gases A, B, ...

The critical temperature of gases A, B, C and D are `-118^(@)`C, `-240^(@)`C, `132^(@)`C and `20^(@)`C, respectively. Arrange them in the decreasing order of intermolecular force of attraction.

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The higher the critical temperature the more is the intermolecular force of attraction and they can be liquefied easily. Decreasing order of intermolecular force of attraction is `C gt D gt A gt B`.
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