Question

Green chemistry in day-to-day life is in the use of ______.

Options

• chlorine for bleaching of paper.

• liquified CO₂ for dry cleaning of clothes.

• large amount of water alone for washing clothes.

• tetrachloroethene for laundry.

Answer 1

Green chemistry in day-to-day life is in the use of liquified CO₂ for dry cleaning of clothes.

Explanation:

Chlorine gas was utilised in the standard bleaching process for paper. These days, hydrogen peroxide is employed for the same purpose when an appropriate catalyst is present. H₂O₂ has the benefits of utilising less water and producing better results.

Tetrachloroethene, a chemical used in laundry, is carcinogenic and causes ground water pollution. Liquified CO₂ and an appropriate detergent can be used in place of tetrachloroethene. It has no negative effects on groundwater.

But, H₂O₂ gives better results as compared to liquefied CO₂.