Question

A, B and C are 3 elements which undergo chemical equation s according to:
A2o3+2B=B2O3+2A
2CSO4+2B=B2(SO4)3+3C
3CO+2A=A203+3C
a) which element is most reactive?
b) which element is the least reactive?
c) what is kind of chemical reaction is listed above?

Answer 1

Here after analysis of the equations,

a) the element that is most reactive is B

b) the element that is least reactive is C

c) the chemical reaction listed above is oxidation reaction.

In the first equation A2o3+2B=B2O3+2A B is reducing A

In the second equation 2CSO4+2B=B2(SO4)3+3C  B is also reducing C

Hence B is the most reactive.

in the third equation 3CO+2A=A203+3C A is reducing C hence C becomes  the least reactive.