MCQ Class 10 Science Chapter 1 Chemical Reactions and Equation

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MCQ’s For All Chapters – Science Class 10th

1. The reaction Fe + CuSO₄ → FeSO₄ + Cu is:

Question 1 of 15

2. Which metal can displace copper from CuSO₄ solution?

Question 2 of 15

3. The reaction Na₂SO₄ + BaCl₂ → BaSO₄ + 2NaCl is:

Question 3 of 15

4. A reaction that produces an insoluble solid is called:

Question 4 of 15

5. Which is the white precipitate formed in reaction of BaCl₂ with Na₂SO₄?

Question 5 of 15

6. The reaction 2Cu + O₂ → 2CuO shows:

Question 6 of 15

7. The reverse reaction CuO + H₂ → Cu + H₂O shows:

Question 7 of 15

8. In redox reactions:

Question 8 of 15

9. In the reaction ZnO + C → Zn + CO, which substance is reduced?

Question 9 of 15

10. In the reaction MnO₂ + HCl → MnCl₂ + H₂O + Cl₂, which substance is oxidised?

Question 10 of 15

11. Which process damages iron articles by forming rust?

Question 11 of 15

12. The green coating on copper articles is due to:

Question 12 of 15

13. Which gas is used in chip packets to prevent rancidity?

Question 13 of 15

14. Rancidity is caused by:

Question 14 of 15

15. Which reaction is opposite to combination reaction?

Question 15 of 15


 

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Comments

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