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Electrochemistry — Chemistry STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceChemistryElectrochemistry1 Mark
Question
When a corroded metal object is rubbed by a sand paper then:
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Answer

  1. Outer corroded layer will be removed.
Explanation:
The metals lose their shine and become dull when exposed to air for a long time. Due to the formation of oxides, when the surface is rubbed by a sand paper, then the outer corroded layer is removed.

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