The chlorinated alkane often used industrially to remove grease is
A. tetrachloromethane
B. chloromethane
C. trichloromethane
D. dichloromethane
The correct answer is:
A. tetrachloromethane
Explanation:
Tetrachloromethane (CCl₄) is a chlorinated alkane widely used in industry as a solvent for grease, oils, and fats because it effectively dissolves these substances without reacting chemically.
Chloromethane (CH₃Cl) – used mainly as a refrigerant and in organic synthesis.
Trichloromethane (CHCl₃, chloroform) – mainly used as a solvent and formerly as an anesthetic.
Dichloromethane (CH₂Cl₂, methylene chloride) – also a solvent, but tetrachloromethane is more common for industrial degreasing.
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