Question

Given below are two statements:
Statement I: The pH of rain water is normally $\approx 5.6$.
Statement II: If the pH of rain water drops below $5.6$, it is called acid rain.
In the light of the above statements, choose the correct answer from the option given below.

• A. Statement I is false but statement II is true
• B. Both statement I and statement II are true
• C. Both statement I and statement II are false
• D. Statement I is true but statement II is false

Answer 1

The correct option is B Both statement I and statement II are true

$pH$ of rain water is nearly $5.6$ because it reacts with carbon dioxide in the atmosphere and forms mildly acidic carbonic acid before it becomes rain and if the $pH$ of rain water drops below $5.6$, it is called acid rain.