25 multiple-choice questions (MCQs) based on Chapter 1 “Chemical Reactions and Equations” for Class 10 (NCERT & MP Board)
Chemical Reactions and Equations
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25 multiple-choice questions (MCQs) based on Chapter 1 “Chemical Reactions and Equations” for Class 10 (NCERT & MP Board)
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Question 1 of 25
1. Question
4 pointsWhich of the following is a displacement reaction?
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Question 2 of 25
2. Question
4 pointsWhat does the Law of Conservation of Mass state in a chemical reaction?
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Question 3 of 25
3. Question
4 pointsWhich of the following is a combination reaction?
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Question 4 of 25
4. Question
4 pointsWhat happens when iron (Fe) is placed in copper sulfate (CuSO₄) solution?
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Question 5 of 25
5. Question
4 pointsIn which reaction does a reddish-brown deposit form?
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Question 6 of 25
6. Question
4 pointsIf CO₂ gas is released in a reaction, what type of reaction is it likely to be?
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Question 7 of 25
7. Question
4 pointsWhich of the following is an example of double displacement reaction?
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Question 8 of 25
8. Question
4 pointsWhich metal reacts most vigorously with water?
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Question 9 of 25
9. Question
4 pointsThe blue color of an aqueous solution is due to which ion?
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Question 10 of 25
10. Question
4 pointsWhat is required in a balanced chemical equation?
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Question 11 of 25
11. Question
4 pointsWhich of the following is a decomposition reaction?
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Question 12 of 25
12. Question
4 pointsHeating FeSO₄ releases which gas?
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Question 13 of 25
13. Question
4 pointsWhen lime (CaO) is mixed with water, the temperature —
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Question 14 of 25
14. Question
4 pointsTurning red litmus blue indicates the solution is —
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Question 15 of 25
15. Question
4 points2Mg + O₂ → 2MgO is what type of reaction?
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Question 16 of 25
16. Question
4 pointsWhat forms on copper metal left in moist air for some time?
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Question 17 of 25
17. Question
4 pointsIn a chemical equation, what does the “+” sign indicate?
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Question 18 of 25
18. Question
4 pointsWhich substance forms a brownish solid deposit on rusting?
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Question 19 of 25
19. Question
4 pointsWhat is the first step in writing a balanced chemical equation?
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Question 20 of 25
20. Question
4 pointsWhat is produced by electrolysis of water?
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Question 21 of 25
21. Question
4 pointsSilver chloride (AgCl) decomposes in which light?
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Question 22 of 25
22. Question
4 pointsWhich of the following is an exothermic reaction?
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Question 23 of 25
23. Question
4 pointsWhat is the color of solid formed after heating FeSO₄?
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Question 24 of 25
24. Question
4 pointsWhich of the following indicates a chemical reaction has taken place?
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Question 25 of 25
25. Question
4 pointsIn the reaction 2H₂ + O₂ → 2H₂O, which elements are combining?
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Leaderboard: Chemical Reactions and Equations
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