Question: B7. A,B and C are 3 elements which undergo chemical reactions according to the following equations: (i) A203 + B - B203 + A

B7. A,B and C are 3 elements which undergo chemical reactions according

B7. A,B and C are 3 elements which undergo chemical reactions according to the following equations: (i) A203 + B - B203 + A (ii) CSO4 + B B2(SO4)3 + C (iii) CO + A - A203 + C (a) What is the group of the element A, B and C? (1.5 marks) (b) Balance all the above chemical reactions. (1.5 marks) (c) Name the anion used in above reactions. (1 mark) (d) Write the type of chemical reaction (1.5 marks) (e) The element A and C are in period 3 and 4 respectively. Write the chemical name of the compound formed between A and SO4 ion and in between C and O ion. (1.5 marks)

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