How can you apply green chemistry for the following ?
(a) To control photochemical smog.
(b) To avoid use of halogenated solvents in dryclening and that of chlorine in bleaching.
(c ) to reduce use of synthestic detergents.
(d) To reduce the consumption of petrol and diesel.

Explanation

(i)In dry cleaning, liquefied `CO_2` along with a suitable detergent is used and for bleaching hydrogen peroxide is used which gives better results and is not harmful
(ii) Soaps should be used in place of detergents because soaps are 100% biodegradable and do not cause any pollution problem. Now a days, soft detergents are available which are biodegradable. They can be used in place of hard detergents which are non-biodegradable
(iii)(a) CNG (Condensed Natural Gas) may be used as it causes much less pollution
(b) Electrical vehicles should be used which have rero pollution. We expect a large number of electrical cars and two wheelers on the road in near future