Class 10 Science Chapter 2
4 Practice Questions — The answers are hidden. Reveal them to check your answers. The Timed Test will be available in Phase 3.
Acids produce H⁺ (or H₃O⁺) in water, taste sour, turn blue litmus red — e.g. lemon juice / HCl.
Bases produce OH⁻, feel soapy, turn red litmus blue — e.g. soap solution / NaOH.
They neutralise each other to give salt and water.
Mention one strong and one weak example if the question has marks for that.
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.
Follow this loop every day: mixed test, current affairs, then today's subject. A new set arrives tomorrow.
After this page, use these three links — do not open a random page.
More sets from the same cluster — stay on this topic.
Timed papers with a scorecard — start any time, then return to a related quiz above.
