Explain Activity 1.3 Class 10 NCERT Science

In this post, you will learn a complete explanation of activity 1.3 class 10 science that belongs to chapter 1 Chemical Reactions and Equations.

Explain Activity 1.3 Class 10 NCERT Science

 

Caution: This activity needs the teacher’s assistance. Handle the acid with care.

Activity - Take a few zinc granules in a conical flask or a test tube. Add dilute hydrochloric acid or sulphuric acid to this.

Do you observe anything happening around the zinc granules? Touch the conical flask or test tube. Is there any change in its temperature?

Observation and Conclusion: Hydrogen gas is produced and the conical flask gets hot due to the action of dil. H₂SO₄. The presence of hydrogen gas can be observed in the form of bubbles accompanied by brisk effervescence.

Zn(s)  +      H₂SO₄ (aq)   →    ZnSO₄ (aq)    + H2(g) ↑

(Zinc)      (Sulphuric acid)      (Zinc sulphate)      (Hydrogen)

After the above reaction, we can feel an increase in temperature in the flask.

Watch the Video to understand the topic Activity 1.3 👇

Quiz

Questions based on activity 1.3 Class 10 Science

1. Name the gas that evolved when an acid reacts with a metal.

Ans.-  Hydrogen gas is evolved.

2. Give the names and formulas of any two acids.

Ans.- Hydrochloric acid (HCl)and Sulphuric acid(H₂SO₄)

3. Which chemical reaction takes place when zinc reacts with sulphuric acid?

Ans.- displacement reaction

4. Name the chemical substance that is formed during the reaction of zinc and sulphuric acid.

Ans. – Zinc sulphate (ZnSO₄)

5. What is the aim of activity 1.3 Class 10 Science?

Ans. The aim of activity 1.3 is to know about the 'Displacement reaction'. 

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3. MCQ Questions of Chapter 1 

4. Extra Questions of Chapter 1

5. How to balance a chemical Reaction

6. What happens during a chemical reaction