A, B and C are three elements which undergo chemical reactions according to the following equations.

A2O3 + 2 B → B2O3 + 2 A3 CSO4 + 2 B →B2 (SO4)3 + 3C.3 CO + 2 A →A2O3 +3 C.Answer the following questions.(a) Which element is the most reactive ?(b) Which element is the least reactive ?(c) Arrange A, B, and C in the form of reactivity series.

Element B displaces A and C from their compounds in reaction 1 and 2 respectively.And element A displaces element C in reaction 3.Therefore,a) B is the most reactive elementb) C is the least reactive element.c) Reactivity series,B most reactiveAC least reactive

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