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प्रश्न
Write a chemical reaction useful to prepare the following:
Freon – 12 from Carbon tetrachloride
उत्तर
Freon – 12 is prepared by the action of hydrogen fluoride on carbon tetrachloride in the presence of catalytic amount of antimony pentachloride.
\[\ce{\underset{\text{tetrachloride}}{\underset{\text{Carbon}}{CCl4}} + 2HF ->[Sbcl5] 2HCl + \underset{\text{Freon - 12}}{CCl2F2}}\]
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