Q1: pH value of rain water in India ranges from

ANS:A - 5.5 to 7.5

The pH value of rainwater in India typically ranges from 5.5 to 7.5. This range indicates slightly acidic to neutral conditions. Rainwater naturally absorbs carbon dioxide from the atmosphere, forming a weak carbonic acid, which lowers its pH. Additionally, pollutants emitted into the atmosphere from human activities can further lower the pH of rainwater, leading to acid rain. Here's a breakdown of the pH range:

• 5.5 to 6.5: Rainwater with pH values in this range is considered slightly acidic. This acidity is primarily due to the dissolution of carbon dioxide in the atmosphere, forming carbonic acid.
• 6.5 to 7.5: Rainwater in this range is close to neutral pH. It may occur in areas with less atmospheric pollution or areas where natural alkaline components counteract the acidity.