Question: Reducing smog is a mixture of:
Smoke, fog and $\mathrm{O}_{3}$
Smoke, fog and $\mathrm{SO}_{2}$
$\mathrm{Smoke}$, fog and $\mathrm{CH}_{2}=\mathrm{CH}-\mathrm{CHO}$
Smoke, fog and $\mathrm{N}_{2} \mathrm{O}_{3}$
Correct Option: , 2
Solution:
Reducing or classical smog is the combination of smoke, fog and $\mathrm{SO}_{2}$.
