question_answer

   (i) Write the steps involved in the process of obtaining pure copper sulphate from an impure sample. (ii) Give any one application of this method. (iii) Why is this technique better than simple evaporation to purify solids?

Answer:

                  (i) An element consists of only one type of atoms. It is a basic form of matter that cannot be broken down into simpler substances by chemical reactions.                                          (1) (ii) Metals, non-metals and metalloids          (1) (iii) Metals Malleable and ductile                  (1) Non-metals Brittle                                           (1) Metalloids Semiconductors                           (1)