JAMB - Chemistry (2020 - No. 31)
The chlorinated alkane often used industrially to remove grease is?
Tetrachloromethane
Chloromethane
Trichloromethane
Dichloromethane
解释
Tetrachloromethane ( carbon tetrachloride) is an effective solvent within the chemical industry and is used to clean machinery and electrical equipment.
I.e as a solvent for oils, fats, lacquers, varnishes, rubber waxes, and resins, and as a grain fumigant.