A substance that turns blue litmus red is:
- A. A base
- B. An acid
- C. A salt only
- D. Distilled water
View the correct answer
Correct option: B — An acid
Acids turn blue litmus red; bases turn red litmus blue.
Class 10 Science Chapter 2
All questions
4 Practice Questions — The answers are hidden. Reveal them to check your answers. The Timed Test will be available in Phase 3.
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These practice sets use original GKSchools wording — they are not a verbatim dump of the NCERT textbook. “Important” means high-weight practice for the chapter, not a claim that these are previous-year exam questions.
