For dry cleaning of clothes instead of tetrachloroethane which is carcinogenic in nature, which of the following solvents can be used ?
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a
Liquid CO2
b
H2O2
c
Liquid O3
d
Petrol
answer is A.
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Detailed Solution
Now–a–days, CCl2 = CCl2 (tetrachloroethene) which is a suspected carcinogenic is replaced by a better solvent like liquid CO2 with suitable detergent in dry cleaning. NOTE….It should be tetrachloroethene in the question