Consider the following chemicals: 1. Benzene 2. Carbon tetrachloride 3. Sodium carbonate
Consider the following chemicals:
1. Benzene
2. Carbon tetrachloride
3. Sodium carbonate
4. Trichloroethylene
Which of the above/is are used as dry cleaning chemical?
(a) 1 only (b) 2 only (c) 1, 2 and 4 only (d) 1, 2, 3 and 4
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(c) Dry cleaning is a cleaning process for clothing and textiles involves using a chemical solvents other then water. The solvent used is typically trichloroethylene while carbon tetra chloride and tri chloroethane is used historically. Benzene is other common agent used for this purpose.
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