Question

Which among the following statements is correct?

• A. ${CO}_2$ gas develops more acidity in rain-water than ${SO}_{@}$
• B. $H_2{SO}_3$ is less acidic than $H_2{SO}_4$
• C. $H{NO}_3$ is less acidic than $H{NO}_2$
• D. ${SO}_2\left(g\right)$ is reduced in the atmosphere during thunderstorm

Answer 1

Answer: (A), (B)

The correct options are
A ${CO}_2$ gas develops more acidity in rain-water than ${SO}_{@}$
B $H_2{SO}_3$ is less acidic than $H_2{SO}_4$

Acid rain occurs when emissions from factories, cars or heating boilers come in contact with the water in the atmosphere. These emissions contain nitrogen oxides, sulfur dioxide and sulfur trioxide, which when mixed with water become sulfurous acid, nitric acid and sulfuric acid. This process give rise to acid rain.