Explanation:

- Liquefied petroleum gas (LPG) is mainly used for cooking in homes.

- It is typically a mixture of hydrocarbons.

- Option 1: Methane and butane - Methane is not commonly part of LPG as it is a primary component of natural gas, not LPG.

- Option 2: Methane and propane - Again, methane is not typically part of LPG.

- Option 3: Hexane and propane - Hexane is not a standard component of LPG. It's mainly used as a solvent.

- Option 4: Propane and butane - Both propane and butane are standard components of LPG. They are compressed into liquid form for ease of storage and transport.

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