MCQ Class 10 Science Chapter 1 Chemical Reactions and Equation

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MCQ’s For All Chapters – Science Class 10th

1. There will be total 20  MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying

1. A magnesium ribbon is burnt in air. A student made the following observations:
i. Magnesium ribbon undergoes oxidation reaction.
ii. Magnesium reacts with air to form magnesium oxide.
iii. Magnesium ribbon undergoes decomposition reaction.

1Which of the following statements is correct?

Question 1 of 20

2. Reaction between Ammonium chloride and Barium hydroxide is :

Question 2 of 20

3. Physical changes are accompanied by:

Question 3 of 20

4. In a reaction between zinc and hydrochloric acid, the changes accompanying a reaction are:

Question 4 of 20

5. If reaction between nitrogen and hydrogen to form ammonia is exothermic, then it will be accompanied by:

Question 5 of 20

6. During an exothermic reaction:

Question 6 of 20

7. The reactions in which precipitate is formed are known as:

Question 7 of 20

8. As seen in the figure, two nails are carefully dipped in copper sulphate solution with the help of threads. What will happen when the nails are removed after half an hour?

3

Question 8 of 20

9. An example of a chemical reaction in which heat is evolved is:

Question 9 of 20

10. An example of reaction in which gas is evolved is:

Question 10 of 20

11. Freezing of water is a:

Question 11 of 20

12. An example of reaction in which precipitate is formed is:

Question 12 of 20

13. An example of a physical change is:

Question 13 of 20

14. The preparation of water from hydrogen and oxygen gas is accompanied by:

Question 14 of 20

15. Which of the following feature is common to both physical and chemical change?

Question 15 of 20

16. A drop of colourless liquid is poured over blue litmus paper and it turns to red. The colourless liquid is:

Question 16 of 20

17. What happens when dilute sulphuric acid is added to zinc granules? Select the correct option.

2

Question 17 of 20

18. Dissolving of quick lime in water is accompanied by:

Question 18 of 20

19. Select the reaction which is not an exothermic reaction?

4

Question 19 of 20

20. Setting of cement is an example of:

Question 20 of 20

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