Question

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

A2O3+2B-> B2O3+2A

3CSO4+2B-> B2(SO4)3 +3C

A)WHICH ELEMENT IS MORE REACTIVE AND WHICH IS LEAST REACTIVE.

Answer 1

the element which is more reactive is B

Answer 2

Hey dear,
Interesting question. But you missed some essential part.

# Reactions given are
A2O3 + 2B --> B2O3 + 2A
3CSO4 + 2B --> B2(SO4)3 + 3C
3CO + 2A --> A2O3 + 3C

● Answer -
Most reactive => B
Least reactive => C

● Explanation -
Element B displaces both elements A & C from their respective compounds. Hence, element B is most reactive of all.

Between A & C, element A replaces element C from its compound, hence element A is more reactive than element C. This makes C is the least reactive.


Hope this helps you...