Given below are two statements:
Question:

Given below are two statements:

Statement I :

The $\mathrm{pH}$ of rain water is normally $\sim 5.6$.

Statement II :

If the $\mathrm{pH}$ 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 options given below:

1. Statement I is true but Statement II is false.

2. Both Statement I and Statement II are false.

3. Statement I is false but Statement II is true.

4. Both Statement I and Statement II are true.

Correct Option: , 4

Solution:

Both statements are correct.

Normally rain water has $\mathrm{pH}$ of $5.6$ due to the presence of $\mathrm{H}^{+}$ions formed by the reaction of rain water with carbon dioxide present in the atmosphere.