Indicate whether the following conversions represent an oxidation, a reduction or none (neither oxidation nor reduction).
(i) `HClO_(3) ` to `HClO_(4) " " ` (ii) `NH_(4)^(+)` to `NH_(3)`
(iii) `NO_(2)` to `N_(2)O_(4) " " ` (iv) `HSO_(3)^(-)` to `SO_(4)^(2-)`
(v) `H_(2)O_(2)` to `H_(2)O`

Options

A. `{:(," (i)"," (ii)","(iii)","(iv)"," (v)",),(,"Oxidation","Reduction","None","None","Oxidation",):}`
B. `{:(," (i)"," (ii)","(iii)"," (iv)"," (v)",),(,"Oxidation","None","None","Oxidation","Reduction",):}`
C. `{:(," (i)"," (ii)","(iii)"," (iv)"," (v)",),(,"Reduction","Oxidation","Reduction","None","Reduction",):}`
D. `{:(," (i)"," (ii)","(iii)"," (iv)"," (v)",),(,"Oxidation","Reduction","None","Reduction","Reduction",):}`

Answer

B

Explanation

`{:(overset(+5)(HClO_(3)),rarr,overset(+7)(HC)lO_(4)),(overset(-3)(N)H_(4)^(+),rarr,overset(-3)(N)H_(3)),(overset(+4)(N)O_(2),rarr,overset(-4)(N)_(2)O_(4)),(overset(+4)(HSO_(3)^(-)),rarr,overset(+6)(S O_(4)^(2-))),(overset(-1)(H_(2)O_(2)),rarr,H_(2)overset(-2)(O)):}`