The correct answer is CH₃Cl.

  Key Points

• Methyl chloride:-
  • It also known as chloromethane or Refrigerant-40, is an organic compound with the chemical formula CH₃Cl.
  • It is a colorless, sweet-smelling, flammable gas that is used in a variety of industrial applications.
  • Methyl chloride is produced by the reaction of methanol with hydrogen chloride. It can also be produced by the chlorination of methane.
  • Methyl chloride is used in a variety of industrial applications, including:
    • Refrigerant: Methyl chloride was formerly used as a refrigerant, but it has been phased out due to its environmental concerns.
    • Fumigant: Methyl chloride is used as a fumigant to control pests in stored grain and other products.
    • Methylating agent: Methyl chloride is used as a methylating agent to attach CH3 groups to other molecules.
    • Silicone production: Methyl chloride is used in the production of silicone polymer

  Additional Information

• Methane:-
  • CH₄ is a chemical compound with the simplest alkane and the main constituent of natural gas.
  • It is a colorless, odorless gas that is flammable and has a boiling point of -161.5 °C (-258.7 °F) and a melting point of -182.5 °C (-294.5 °F).
• Ethane:-
  • It is a naturally occurring organic compound with the chemical formula C₂H₆.
  • At standard temperature and pressure, ethane is a colorless, odorless gas. It is the second simplest alkane, after methane, and is the main component of natural gas.
• Acetylene or ethyne:-
  • C₂H₂ is the simplest alkyne, a chemical compound with the formula H−C≡C−H.
  • It is a colorless gas with a faint, garlic-like odor. Acetylene is highly flammable and unstable, and it is often handled in a solution.