Environmental Chemistry Question 5

Question 5 - 30 January - Shift 1

Formation of photochemical smog involves the following reaction in which $A, B$ and $C$ are respectively.

(i) $NO_2 \xrightarrow{\text{ hu }} A+B$

(ii) $B+O_2 \to C$

(iii) $A+C \to NO_2+O_2$

Choose the correct answer from the options given below:

(1) $O, NO \& NO_3^{-}$

(2) $O, N_2 O \& NO$

(3) $N, O, \& O_3$

(4) $NO, O \& O_3$

Show Answer

Answer: (4)

Solution:

Formula: Photochemical Smog

$NO_2 (g) \xrightarrow{hv} NO + O (g) $

$O (g) +O _{2} (g) \rightarrow O _{3} (g) $

$NO_g+O _{3} (g) \longrightarrow NO _{2} (g) +O _{2} (g) $