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NEETChemistryStates of Matter

What is required for the liquifaction of so-called permanent gases?

Options

  1. AHeating and expansion.
  2. BCompression and cooling.
  3. CIncreased pressure and intermolecular interactions.
  4. DExpansion and increased pressure.

Correct answer

B. Compression and cooling.

Step-by-step solution

Liquifaction of so-called permanent gases requires both compression and cooling.

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