Explain about green chemistry in day-to-day life.

1.	Explain about green chemistry in day-to-day life.
Answer» Solution :(i )Dry cleaning of clothes: Solvents like tetrachloroethylene USED in dry cleaning of clothes. pollute the groundwater and are carcinogenic. In place of tetrachloro ethylene. liquefied `CO_2` with suitable detergent is an alternate solvent used. Liquefied `CO_2` is not HARMFUL to the ground water. Nowadays `H_2O_2` is used for bleaching clothes in laundry, gives better result and utilises less water. (ii) Bleaching of paper: Conventional METHOD of bleaching was done with chlorine Nowadays `H_2O_2` can be used for bleaching paper in the presence of catalyst. (iii) Synthesis of chemicals: Acetaldehyde is commercially PREPARED by one step oxidation of ethene in the presence of ionic catalyst in aqueous medium with 90% yield. `underset ("Ethylene")(CH_(2) = CH_(2)) overset("Catalyst")underset(underset([O])"Pd(II)//Cu(II)")rarr underset("Acetaldehyde")(CH_(3)CHO)` (iv) Instead of petrol, methanol is used as a fuel in AUTOMOBILES. (v) Neem based pesticides have been synthesised, which are more safer than the chlorinated hydrocarbons.

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