Give information on the uses of green chemistry in day-to-day life.

(N/A) Uses of green chemistry in our life are as follows:
$(i)$ Dry Cleaning of Clothes: Tetrachloroethene $(Cl_2C=CCl_2)$ was earlier used as a solvent for dry cleaning. This compound contaminates groundwater and is a suspected carcinogen. Instead,liquefied carbon dioxide with a suitable detergent is now used. Replacement of halogenated solvents by liquid $CO_2$ results in less harm to groundwater. Hydrogen peroxide $(H_2O_2)$ is used for bleaching clothes,which gives better results and uses less water.
$(ii)$ Bleaching of Paper: Earlier,chlorine gas was used for bleaching paper,whereas hydrogen peroxide $(H_2O_2)$ is used nowadays.
$(iii)$ Synthesis of Chemicals: Ethanal $(CH_3CHO)$ is now commercially prepared by the oxidation of ethene in the presence of an ionic catalyst in an aqueous medium with a yield of $90 \%$.
$CH_2=CH_2 + O_2 \xrightarrow[Pd(II)/Cu(II) \text{ (in water)}]{Catalyst} CH_3CHO \text{ (90 \%)}$