Q. Which of the following chemicals are used in dry cleaning?

1. Naphtha
2. Benzene
3. Tetrachloroethylene

Select the correct option from the codes given below:
Answer: 1, 2 & 3
Notes: In dry cleaning, cleansing is achieved by the action of a solvent, which dissolves out the sticky matter due to its like nature. Dry cleaning fluids serve as a vehicle to carry away the soil. Camphene, naphtha, benzene, benzol, petrol, carbon tetrachloride, trichloroethylene and tetrachloroethylene are some of the frequently used dry cleaning fluids. However, tetrachloroethylene (perchloroethylene), abbreviated “perc” in the industry is a common solvent used in Dry Cleaning.