In this post, you will learn a complete explanation of activity 1.8 class 10 science that belongs to chapter 1 Chemical Reactions and Equations.
Explain Activity 1.8 Class 10 NCERT Science
Caution: This activity
needs the teacher’s assistance.
Aim
To find the change in colour of silver chloride after decomposition
Activity
- Take about 2 g of silver chloride in a China dish.
· What
is its colour?
· Place
this China dish in sunlight for some time
· Observe
the colour of the silver chloride after some time.
Explain Activity 1.8 Class 10 NCERT Science |
Observation
When silver chloride is placed in the sunlight. Colour of silver chloride changes.
Conclusion
On the decomposition of silver chloride
which is white in colour, it changes to grey.
sunlight
2AgCI (s) → 2Ag(s) + CI2 (g)
(white) (grey)
Silver chloride decomposes into silver and chlorine.
so, the decomposition reaction takes place in the presence of sunlight, it is called Photolysis.
Watch the video to understand activity 1.8👇
Quiz of Activity 1.8
Frequently asked questions
1. What is the colour of silver chloride?
Ans.
Silver chloride is a white powder.
2. Name the reaction that takes place in this activity.
Ans.
Photolysis
3. Name the substance formed after the decomposition of silver chloride.
Ans. Silver (Ag) and chlorine (Cl)
4. Write the definition of ‘Decomposition reaction’.
Ans.
Complex substance breaks down into two or more simple substances in the
presence of energy(heat, light, electricity )
5. Give the chemical equation of the reaction.
Ans. 2AgCl → 2Ag+ Cl2
Related Topics for you
1. Activity 1.9 Class 10 Science
2. Activity 1.7Class 10 Science
2. Solution of Chemical Reactions and Equations
4. Extra Questions of Chapter 1