JEE Main202224 Jun 2022Evening ShiftChemistryEnvironmental ChemistryActual
Some gases are responsible for heating of atmosphere (green house effect). Identify from the following the gaseous species which does not cause it.
Options
- AH 2 O vapour
- BO 3
- CN 2
- DCH 4
Correct answer
C. N 2
Step-by-step solution
About 75 % of the solar energy reaching the earth is absorbed by the earth’s surface, which increases its temperature. The rest of the heat radiates back to the atmosphere. Some of the heat is trapped by gases such as carbon dioxide, methane, ozone, chlorofluorocarbon compounds (CFCs) and water vapour in the atmosphere. Thus, they add to the heating of the atmosphere. This causes global warming. Hence, Nitrogen gas is not responsible for green house effect.