MolSynapsequestion bank

MolSynapse / Question bank / Environmental Chemistry / Ozone depletion and greenhouse effect

JEE Advanced levelOne or more correct optionsDifficulty 3 of 3ev106

Which statements about ozone in the troposphere are correct?

AIt is produced from the photolysis of $NO X_{2}$ followed by $O + O X_{2} O X_{3}$ .
BIt can damage plant leaves and irritate the respiratory tract.
CIt is a secondary pollutant.
DIt is emitted directly by vehicle exhausts.

Answer: A, B, C

Ozone at ground level is made by sunlight-driven reactions, so it is a secondary pollutant. It harms plants and lungs. Vehicles emit NO and hydrocarbons (the precursors) but not ozone directly.

Practice Environmental Chemistry More on Ozone depletion and greenhouse effect

Previous questionNext question

More questions on Ozone depletion and greenhouse effect

Which statements correctly describe the formation of the Antarctic ozone hole? JEE Advanced level
Which of the following species are free radicals (contain an unpaired electron)? JEE Advanced level
Regarding the replacements for CFCs, which statements are correct? JEE Advanced level
Which statements about the greenhouse effect are correct? JEE Advanced level
Which of the following are expected consequences of global warming? JEE Advanced level
Which of the following are correctly balanced steps of the standard scheme for chlorine-catalysed ozone loss and activation of reservoirs? JEE Advanced level