Question
Download Solution PDFBest way to prevent rusting of iron is by -
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
Prevention of Rusting of Iron
- Rusting of iron is an electrochemical process that occurs when iron reacts with oxygen and moisture to form iron oxide (rust).
- Preventing rust involves methods that either block the exposure to moisture and oxygen or control the electrochemical reactions.
EXPLANATION:
- Putting iron in saline water actually accelerates rusting because saline water acts as an electrolyte that increases the rate of the electrochemical reaction.
- Option 2: Making iron the cathode can prevent rusting. In cathodic protection, a more reactive metal (like zinc) is used as the anode, which corrodes instead of iron, protecting it from rust.
- Option 3: Both of these is incorrect because placing iron in saline water does not prevent rusting; it worsens it.
- Option 4: "None of these" is also incorrect because making iron the cathode is a valid rust prevention method.
The correct answer is (2) Making iron cathode.
Last updated on May 30, 2025
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