In this post, you will find NCERT Class 10 Science Activity 2.15 Explanation in detail. This activity is based on chapter 2 Acids, Bases and Salts of class 10 science.
NCERT Class 10 Science Activity 2.15 Explanation
Activity- Heat a few
crystals of copper sulphate in a dry boiling tube.
· What
is the colour of the copper sulphate after heating?
· Do
you notice water droplets in the boiling tube? Where have these come from?
· Add
2-3 drops of water on the sample of copper sulphate obtained after heating.
· What
do you observe? Is the blue colour of copper sulphate restored?
Observation-
Blue coloured copper sulphate crystals on heating leave behind white anhydrous
copper sulphate and water droplets are seen in the upper parts of the boiling tube.
Conclusion-
Copper sulphate crystals on heating lose water to form anhydrous copper
sulphate which combines with water to form blue coloured copper sulphate
crystals.
Related Topics -
1. First Activity- Activity 2.1
2. Previous activity - Activity 2.14
4. Extra Questions of Chapter 2
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