Question

Given the following equations:

(i) A + C2+ → A2+ + C goes

(ii) 2 D3+ + 3 A → 2 D + 3 A2+ doesn't go

(iii) C2+ + B → C + B2+ doesn't go

Arrange the elements A, B, C, and D from the strongest to weakest reducing agent.

Answer 1

the substance which undergoes oxidation will acts as reducing agent . since A is able to reduce C^+2 to C but reduction of c is not taking place with help of B as from ( iii ) reaction . hence it can be said that A is stronger reducing agent than B

also as A does not able to reduce D^+3 to D hence it means that A is weak reducing agent to reduce D so that A is strong oxidising nature as D SO that the order can be given by

D > A > C > B this is decreasing order of reducing nature.