CameraIcon

SearchIcon

MyQuestionIcon

370

You visited us 370 times! Enjoying our articles? Unlock Full Access!

Factors Affecting Corrosion

In rusting of...

Question

In rusting of iron, iron is oxidised and O $_{2}$ is reduced. The no. of electrons used during reduction O $_{2}$ are :

Open in App

Solution

In rusting of iron, iron is oxidised and O $_{2}$ is reduced. The no. of electrons used during reduction O $_{2}$ are 4.
$O_{2} (g) + 4 H^{+} (a q) + 4 e^{-} \to 2 H_{2} O (l)$

Suggest Corrections

thumbs-up

0

Similar questions

Q. Following reaction describe the rusting of iron,

4 F e + 3 O_{2} \to 4 F e^{3 +} + 6 O^{2 -}

Which one of the following statement is incorrect?

O_{2}

instead of air is used to oxidise the pig iron because:

Q. In alkaline medium,

C l O_{2}

H_{2} O_{2}

O_{2}

and is itself reduced to

{C l}^{⊖}

. How many moles of

H_{2} O_{2}

are oxidised by 1 mol of

C l O_{2}

?

Q. The electron pairs of reduced coenzymes reach

O_{2}

and energy released during electron movement is used for the synthesis of __.

Q. An iron nail is to be electroplated with nickel using a nickel plate to prevent it from rusting. The electrolyte used for this purpose is nickel sulphate. Based on the above information, answer the following questions.

What is the number of electrons involved during the reduction at the cathode?

[1 mark]

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Corrosion

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Factors Affecting Corrosion

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon