10th Class Science Metals and Non-metals Question Bank 10th CBSE Science Metals and Non-metals

  • question_answer   A student took four test tubes I, II, III and IV containing aluminium  sulphate, copper sulphate, ferrous sulphate and zinc sulphate solutions respectively. He placed an iron strip in each of them.   In which test tube he found a brown deposite.


                        In test tube (II), because Fe is more reactive than copper but less reactive than Al and Zn.

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