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Question
Explain the following observation:
In the expression anhydrous copper sulphate, what is meant by “anhydrous”?
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Solution
Copper sulphate loses water of crystallization when heated and becomes white powder of CuSO4. This white powder (CuSO4) without water is anhydrous.
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Common Name |
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Acid, base or salt |
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Give a reason for the following:
Heating a hydrated copper sulphate crystal is deemed a chemical change.
A hot saturated solution of copper sulphate forms crystals as it cools. Why?
'A' is a blue coloured crystalline salt. On heating, it loses blue colour and to give 'B'. When water is added, 'B' gives back to 'A'. Identify A and B, write the equation.
What happens when MgSO4.7H2O is heated? Write the appropriate equation?
