In a country, following suggestions/ processes are being strictly followed:(I) Liquefied CO2 instead of Cl2C = CCl2 for dry cleaning(II) H2O2 instead of SO2 and Cl2 for bleaching of papers and clothes.(III) Biodiesel instead of normal refinery diesel for automobiles.Which of the above are under green chemistry?

(I) Cl2C = CCl2 releases Cl• which destroys ozone layer. Hence, use of liquefied CO, in dry cleaning is desirable.(II) SO2 and Cl2 are bleaching agents but cause atmospheric pollution. Use of H2O2 is desirable, since waste is H2O which drains out.H2O2 →   H2O +O(III) Use of biodiesel releases no CO hence causes no pollution.