railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test General Science Chemistry Equilibrium
Consider the following statements:
1. Human body works within the pH range of 7.0 to 7.8.
2. It is said to be Acid rain when the pH of rainwater is less than 5.6.
Which of the following statements given above is/are correct?
1
1 only
2
2 only
3
Both 1 and 2
4
Neither 1 nor 2