It is necessary to know the chemical reactions occurring around us. Learner should visit the nearby and collect the following and do the following activities : Iron nail, CuSO4 , Sodium (Na), Magnesium (Mg), Sulphur (S), Phosphorus (P) (i) Add nail in CuSO4 solution. The colour of CuSO4 disappears why? (ii) How does iron react with hot and cold water? (iii) How does Na react with cold water? (iv) How does Mg react with hot and cold water? (v) Arrange Iron, Mg and Na in increasing order of activity series. (vi) List the metals and nonmetals.

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