BITSAT2014ChemistryEnvironmental ChemistryActual
When rain is accompanied by a thunderstorm, the collected rain water will have a pH value:
Options
- ASlightly lower than that of rain water without thunderstorm.
- BSlightly higher than that when the thunderstorm is not there.
- CUninfluenced by occurrence of thunderstorm.
- DWhich depends upon the amount of dust in air.
Correct answer
A. Slightly lower than that of rain water without thunderstorm.
Step-by-step solution
Normal rain water has pH 5.6. Thunderstorm results in the formation NO and HNO ₃ which lowers the pH