Question

Which of the following is a characteristic property of acids?

• A. They turn blue litmus paper red.
• B. They turn red litmus paper blue.
• C. They have a bitter taste.
• D. They are slippery to touch.

Hint:

Remember: Acids turn blue litmus paper red and have a pH of less than 7.

Answer 1

The Correct Option is A

Step 1: Identify the characteristic properties of acids Acids have specific properties that distinguish them from other substances. Some of these include: - They turn blue litmus paper red. - They are sour in taste. - They have a pH less than 7. Step 2: Identify the correct option - Option (1) "They turn blue litmus paper red" is a characteristic property of acids. - Option (2) "They turn red litmus paper blue" is the characteristic property of bases. - Option (3) "They have a bitter taste" is also a property of bases. - Option (4) "They are slippery to touch" is the characteristic property of bases, not acids. Answer: The correct answer is option (1): They turn blue litmus paper red.