Q. With reference to ‘acid and bases’, which of the following statements is/are correct?
1. Acidic solutions have pH more than 7.
2. Basic solutions have pH less than 7.
Select the correct answer from the code given below:
a) Only 2
b) Neither 1 nor 2
c) Both 1 and 2
d) Only 1
Correct Answer: b) Neither 1 nor 2
Question from UPPSC Prelims 2025
Explanation:
– pH 7 is neutral at 25°C. Acids have pH < 7 and bases (alkalis) have pH > 7.
– Statement 1: “Acidic solutions have pH more than 7” — Incorrect (it should be less than 7).
– Statement 2: “Basic solutions have pH less than 7” — Incorrect (it should be greater than 7).
– Therefore, neither statement is correct.
