Home
Class 12
CHEMISTRY
STATEMENT 1 Corrosion of iron is essenti...

STATEMENT 1 Corrosion of iron is essentially an electrochemical phenomenon
STATEMENT 2 : Corrosion reaction at anode : `2Fe(s)rarr2Fe^(3+)+6e^(-)`
STATEMENT 3: Corrosion reaction at cathode : `O_(2)(g)+4H^(+)(aq)+4e^(-)rarr2_(2)O(l)`

A

TTT

B

TFT

C

TFF

D

FFT

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    AAKASH INSTITUTE|Exercise Assignment (SECTION - I) (Subjective Type Question)|12 Videos

  • ELECTROCHEMISTRY

    AAKASH INSTITUTE|Exercise Assignment (SECTION - J) (Aakash Challengers Questions)|10 Videos

  • ELECTROCHEMISTRY

    AAKASH INSTITUTE|Exercise Assignment (SECTION - G) (Integer Answer Type Question)|6 Videos

  • COORDINATION COMPOUNDS

    AAKASH INSTITUTE|Exercise Assignment (Section-J Aakash Challenger Questions )|10 Videos

  • ENVIRONMENTAL CHEMISTRY

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION-D) (Assertion - Reason Type Questions)|5 Videos

Similar Questions

Explore conceptually related problems

Corrosion is essentially an electrochemical phenomenon. Explain the reactions occurring during corrosion of iron kept in an open atmosphere. (b) Calculate the equilibrium constant for the equilibrium reaction Fe_((s)) + Cd_((aq))^(2+) hArr Fe_((aq))^(2+) + Cd_((s)) (Given : E_(Cd^(2+)|Cd)^(@) = -0.40 V , E_(Fe^(2+)|Fe)^(@) = -0.44V ).

The reaction, 2H_(2)O_((l)) to 4H_((aq))^(+)+O_(2(g))+4e^(-) is

E^(o) for the reaction Fe + Zn^(2+) rarr Zn + Fe^(2+) is – 0.35 V. The given cell reaction is :

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)

In the electrochemical reaction, 2Fe^(3+)+Zn rarr Zn^(2+) + 2Fe^(2+) , increasing the concentration of Fe^(2+) :

In the context of the reaction, 4Fe+3O_(2)rarr4Fe^(3+)+6O^(2-) , which of the following statements is // are correct?