Class 10 Science Chapter 2 Acids, Bases and Salts Concept Clarity MCQs with Answers

Practice these Concept Clarity MCQs from Class 10 Science Chapter 2 – Acids, Bases and Salts to strengthen your understanding of important NCERT concepts.

These CBSE-based concept-focused MCQs are designed to improve conceptual understanding rather than rote learning.

Solve these questions to test your knowledge of acids, bases, alkalis, indicators, chemical reactions, and important applications, and prepare effectively for school and CBSE board examinations.

Acids, Bases and Salts Concept Clarity MCQs with Answers

Q1. Lichen, a plant belonging to which of the following divisions?
a) Bryophyta (b) Thallophyta (c)Gymnosperms (d) None of these

Q2. Which of the followings is not natural indicator?
a) Petals of Hydrangea (b) Petals of Petunia (c) Petals of Marigold (d) Petals of Geranium 

Q3. Reaction between an acid and a metal produces which of the following along with salt?
a) Hydrogen gas (b) Water (c) Both a and b (d) None of these 

Q4. A student identifies a substance as an alkali only because it feels soapy and bitter. Why is this method scientifically incorrect?
a) Alkalis are odourless, so they cannot be identified by touch.
b) Many alkalis are corrosive and should never be touched or tasted for identification.
c) Alkalis are always colourless liquids.
d) Alkalis lose their properties when touched.

Q5. Why is concentrated acid always added slowly to water and not water to concentrated acid?
a) Adding acid to water makes the reaction endothermic.
b) Water absorbs the heat produced more effectively, reducing the risk of splashing and burns.
c) Concentrated acids react only when added to water.
d) It prevents the acid from becoming dilute.

Q6. Which of the following is used in the de - greasing of metals?
a) NaOH (b) Cl₂ (c) H₂ (d) N₂

Q7. Which of the following is used in margarine?
a) NaOH (b) Cl₂ (c) H₂ (d) N₂

Q8) Which of the following is used in the manufacture of artificial fibres?
a) NaOH (b) Cl₂ (c) H₂ (d) N₂

Q9. Which of the following is used in the manufacture of pesticides?
a) NaOH (b) Cl₂ (c) H₂ (d) N₂

Q10. Which of the following is used in the manufacture of borax?
a) Baking Soda (b) Bleaching Powder (c) Plaster of Paris (d) Washing Soda

🧠 TopperGuru1 Concept Check

Before checking the answer key, ask yourself these two questions for every MCQ:
✅ Why is the correct option right?
✅ Why are the other three options wrong?
If you can explain both, your concept is truly clear. If not, revise the related NCERT concept and try again.
Remember: Real learning happens when you understand the reason, not when you memorize the answer. 

Answer Key:-

Q1 – B | Q2 – C | Q3 – A | Q4 – B | Q5 – B | Q6 – A | Q7 – C | Q8 – A | Q9 – B | Q10 – D


These Concept Clarity MCQs from Class 10 Science Chapter 2 – Acids, Bases and Salts are designed to strengthen your understanding of important NCERT concepts rather than just test memorization. Regular practice of such application-based questions will help you build a strong conceptual foundation and perform better in school as well as CBSE board examinations.

For better preparation, also practice Assertion-Reason Questions, Case-Based Questions, One-Word Questions, Numericals, and Previous Year Questions from this chapter to achieve complete mastery of the topic


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