Question

. A, B and C are three elements which undergo chemical reactions in the

following way.

A2O3 + 2B → B2O3 + 2A

3CSO4 + 2B → B2(SO4)3 + 3C

3CO + 2A → A2O3 + 3C

Answer the following:

(a) Which element is most reactive?

(b) Which element is least reactive​

Answer 1

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Answer 2

Answer:

a) Element B is the most reactive element compared to A and C because element B is able to displace A and C from their oxides.

b) Element C is least reactive because it gets displaced from oxide or sulfide form when element A and B react with when it is in compound form.