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COMEDK2024ChemistryHaloalkanes and HaloarenesActual

Choose the incorrect statement from the following.

Options

  1. ACarbon tetrachloride is used as a preservative for anatomical specimens
  2. BDichloromethane is used as a solvent in drug industry
  3. CFreon-12 acts as a propellant in aerosol sprays
  4. DDDT is useful to protect crops and to kill mosquitoes that spread malaria

Correct answer

A. Carbon tetrachloride is used as a preservative for anatomical specimens

Step-by-step solution

Carbon tetrachloride is primarily used as a solvent for oils, fats, lacquers, varnishes, rubber waxes, and resins. It is also used as a fire extinguisher under the name Pyrene. It is not used as a preservative for anatomical specimens; formaldehyde is commonly used for that purpose. Dichloromethane is widely used as a solvent in the pharmaceutical industry, as a paint remover, as a propellant in aerosols, and as a process solvent in the manufacture of drugs. Freon-12 (dichlorodifluoromethane) is a chlorofluorocarbo

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