Question

The false statement among the following is

• A. $N{O}_2$ play a role in photochemical smog
• B. NO is more toxic to living tissues than $N{O}_2$
• C. $C{O}_2$ is responsible for acid rain
• D. Only chlorine containing refrigerant is responsible for depletion of ozone layer

Answer 1

The correct option is D Only chlorine containing refrigerant is responsible for depletion of ozone layer

Chlorofluorocarbons and other halogenated ozone-depleting substances are responsible for ozone depletion. Refrigerant and CFCs are a major cause of Ozone layer depletion. Halogenated hydrocarbons are extensively used as refrigerants and chlorine atoms which are responsible for the depletion of the ozone layer.

Photochemical smog is the chemical reaction of sunlight, nitrogen oxides and volatile organic compounds in the atmosphere.

NO2 is more harmful than NO it causes irritation of eyes, nose, and throat. It affects the lungs badly. It increases the chances of asthma and lung infections.

Carbon dioxide in the air can dissolve in rainwater to form carbonic acid. Carbonic acid is a weak acid. Acid rain usually forms high in clouds where sulfur dioxide and nitrogen oxides react with water, oxygen, and oxidants.