Assertion`(A): ` The rusting on the surface of iron involves following reaction `:`  `a. Fe(s) rarr
Channel: Doubtnut
Date: 12/07/2020

Assertion`(A): ` The rusting on the surface of iron involves following reaction `:`  `a. Fe(s) rarr Fe^(2+)(aq)+2e^(-)`  `(` at anodic site `)`  `b. O_(2)(g) +4H^(o+)(aq)+4e^(-) rarr 2H_(2)O(l)`  `(` at cathodic site `)`   `c. 4Fe^(2+)(aq)+O_(2)(g) +4H_(2)O(l) rarr 2Fe_(2)O_(3)(s)+8H^(o+)`  `d.Fe_(2)O_(3)(aq)+xH_(2)O(l) rarr Fe_(2)O_(3).xH_(2)O`  Reason `(R) : ` Rusting is accelerated in the presence of `NaCl` and `CO_(2)`