Question

Sulphur dioxide is one of the components of polluted air. $SO _{2}$ is also a major contributor to acid rain. The correct and complete reaction to represent acid rain caused by $SO _{2}$ is :

• A. $2 SO _{2}+ O _{2} \rightarrow 2 SO _{3}$
• B. $SO _{2}+ O _{3} \rightarrow SO _{3}+ O _{2}$
• C. $SO _{2}+ H _{2} O _{2} \rightarrow H _{2} SO _{4}$
• D. $2 SO _{2}+ O _{2}+2 H _{2} O \rightarrow 2 H _{2} SO _{4}$

Answer 1

Answer: (D)

$2 SO _{2}+ O _{2}+2 H _{2} O \rightarrow 2 H _{2} SO _{4}$ (Acid rain)