Chemistry Test #8 – Acids, Bases & Salts

NCERT Level: Class 7/10 | NEET Foundation

📌 10 MCQs | +4 Correct | –1 Incorrect | Instant Score + Concept Feedback

1. Which substance turns blue litmus red?
a) Soap solution b) Lemon juice c) Baking soda d) Toothpaste

2. Acids have a ___ taste.
a) Bitter b) Chalky c) Sour d) Sweet

3. Which of these is a natural indicator?
a) Phenolphthalein b) China rose c) Methyl orange d) Congo red

4. Neutralization involves:
a) Acid + Acid b) Acid + Base c) Base + Water d) Salt + Water

5. Which turns turmeric paper red?
a) Lemon juice b) Vinegar c) Soap solution d) Water

6. Toothpaste is:
a) Acid b) Base c) Neutral d) Indicator

7. Which acid is present in lemon?
a) Lactic acid b) Acetic acid c) Citric acid d) Formic acid

8. Salt is formed when:
a) Base reacts with metal b) Acid reacts with base c) Two acids mix d) Base reacts with gas

9. What is released during neutralization?
a) Only salt b) Only water c) Salt and water d) Acid gas

10. Antacids are:
a) Acids b) Neutral substances c) Weak bases d) Enzymes

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