CBSE Tutorials

Category: 10th Science

  • Chemistry X | Metals and Non-metals

    Chapter – 3 Metals and Non-metals In Class IX you have learnt about various elements. You have seen that elements can be classified as metals or non-metals on the basis of their properties. Think of some uses of metals and non-metals in your daily life. What properties did you think of while categorising elements as…

  • Chemistry X | Acids, Bases and Salts | Are the Crystals of Salts really Dry?

    Are the Crystals of Salts really Dry? 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? 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…