Chemistry · Electrochemistry

JEE Main 2024 — 27 January, Shift 2 — Question 60

Which of the following statements is not correct about rusting of iron?

Option A:
Coating of iron surface by tin prevents rusting, even if the tin coating is peeling off.
Correct
Option B:
When pH lies above 9 or 10 , rusting of iron does not take place
Option C:
Dissolved acidic oxides $\mathrm{SO}_{2}, \mathrm{NO}_{2}$ in water act as catalyst in the process of rusting.
Option D:
Rusting of iron is envisaged as setting up of electrochemical cell on the surface of iron object

Answer: A

As tin coating is peeled off, then iron is exposed to atmosphere

Answer key and solution verified before publishing.

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