Acids, Bases and Salts | Class 10 | Activity 2.15 with Solution

Activity 2.15  

• Heat a few crystals of copper sulphate in a dry boiling tube.
• What is the colour of the copper sulphate after heating?

✅ Answer: White. 

• Do you notice water droplets in the boiling tube? Where have these come from?

✅ Answer: Copper sulphate crystals contain water of crystallisation. When heated the crystals, this water is removed and the salt turns white.

• Add 2-3 drops of water to the sample of copper sulphate obtained after heating.
• What do you observe? Is the blue colour of copper sulphate restored?

✅ Answer: Copper sulphate crystals restore its blue colour. 

• Activity 2.1
• Activity 2.2
• Activity 2.3
• Activity 2.4
• Activity 2.5
• Activity 2.6
• Activity 2.7
• Activity 2.8
• Activity 2.9
• Activity 2.10
• Activity 2.11
• Activity 2.12
• Activity 2.13
• Activity 2.14
• Activity 2.15

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