The critical temperature of a gas is the temperature: (A) above which it can no longer remain in the gaseous state (B) above which it cannot be liquified by pressure (C) at which it solidifies (D) at which the volume of the gas becomes zero

Above which it cannot be liquified by pressure

Critical temperature (of a substance) can be defined as the highest possible temperature value at which the substance can exist as a liquid. At temperatures above the critical temperature of a given gaseous substance, it can no longer be liquified, regardless of the amount pressure applied to it.

Therefore, the correct option is (B)

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