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Chemistry-10th Chemical Reactions and Equations CBSE Board 2025 Medium

When dry crystals of ferrous sulphate were heated in a dry boiling tube, some tiny water droplets were observ…

When dry crystals of ferrous sulphate were heated in a dry boiling tube, some tiny water droplets were observed in the tube after some time.
  1. (i)State the source of these water droplets.
  2. (ii)Write the colour change observed during heating.
  3. (iii)Write the balanced chemical equation of the reaction that occurs during heating.
  4. (iv)How many water molecules are attached per formula unit of ferrous sulphate crystal ?
  5. (v)Write the molecular formula of crystalline form of (I) copper sulphate, and (II) sodium carbonate.

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