Which fo the following statements are correct concerning redox propreties ?
(i) The reducing power of hydrogen halides increases from hydrogen chloride to hydrogen iodide.
(ii) The oxidizing power of halogens decreases from chlorine to iodine.
(iii) A metal M for which `E^(Ɵ)` for the half-reaction
`M^(n+) +n e^(-) hArr M`
is very negative will be a good reducing agent.

Options

A. (i), (ii) and(iii)
B. (i) and (ii)
C. (i) only
D. (ii) and (iii)

Answer

A

Explanation

(a) (i) `Mn^(n+) + "ne"^(-) hArr` M, for this reaction, high negative value of `E^(circ)` indicates lower reduction potential, that means M will be a good reducing agent.
(ii) Element Reduction F Cl Br I
Potential (`E^(@)`volt) +2.87 +1.36 +1.06 +.054
As reduction potential decreases from fluorine to iodine, oxidising nature also decreases from fluorine to iodine.