10th Class Science Solved Paper - Science-2016

  • question_answer
    While demonstrating decomposition reaction in laboratory the teacher heated ferrous sulphate crystals in a hard glass dry boiling tube.
    (i) What change in the colour of ferrous sulphate crystals you will observe?
    (ii) What type of smell of the gases coming out of the boiling tube would you feel?

    Answer:

    (i) Light green crystal will become white.
    (ii) No smell.


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