The students of grade 7 were asked to conduct an experiment on crystallization in the Chemistry lab. The students took some copper sulphate granules from the labelled bottle and dissolved it in some water in a dish. Then they heated it for a while using a spirit lamp. They showed the result to their teacher; but the teacher could not see any crystals of CuSO4 in the dish. The reason for this is that the crystals of copper sulphate are formed only when

The students of grade 7 were asked to conduct an experiment on crystal

1.	The students of grade 7 were asked to conduct an experiment on crystallization in the Chemistry lab. The students took some copper sulphate granules from the labelled bottle and dissolved it in some water in a dish. Then they heated it for a while using a spirit lamp. They showed the result to their teacher; but the teacher could not see any crystals of CuSO4 in the dish. The reason for this is that the crystals of copper sulphate are formed only when
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