MolSynapsequestion bank

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

JEE Main levelOne or more correct optionsDifficulty 2 of 3ev086

Select the species that are greenhouse gases.

AWater vapour
B $CFC - 12$
C $N X_{2}$
D $He$

Answer: A, B

Water vapour and CFC-12 absorb infrared and so trap heat.

N X_{2}

is a homonuclear diatomic with no dipole change, and

He

is monatomic; neither absorbs infrared.

Practice Environmental Chemistry More on Ozone depletion and greenhouse effect

Previous questionNext question

More questions on Ozone depletion and greenhouse effect