Question

An article in the newspaper reports that ‘Refirigerants like Chlorofluorocarbons (CFCs) pose threat to the environment’. How CFCs are harmful to the environment?

Answer 1

CFC (CCI2F2) splits in the presence of UV and release active chlorine. This active chlorine breaks ozone molecule into O₂ and (O) .It causes the thinning of stratospheric good ozone and harmful UV rays reaches earth surface.