Which of the following is one of the methods to prevent the corrosion of metals?
Which of the following is one of the methods to prevent the corrosion of metals?
निम्नलिखित में से कौन-सा धातुओं के क्षरण को रोकने का एक तरीका है?
Detailed Solution & Logic
Anodising/ एनोडाइजिंग
Explanation
Anodising is a process used to prevent corrosion by forming a protective oxide layer on the surface of metals (mainly aluminium).
एनोडाइजिंग एक ऐसी प्रक्रिया है जिसमें धातु (विशेषकर एल्युमिनियम) की सतह पर सुरक्षात्मक ऑक्साइड की परत बनाई जाती है, जिससे जंग नहीं लगती।
👉 This layer acts as a barrier against air and moisture.
👉 यह परत हवा और नमी से धातु को बचाती है।
❌ Why other options are wrong / अन्य विकल्प क्यों गलत हैं?
- Cathodising (कैथोडाइजिंग) → यह सही तकनीकी शब्द नहीं है (सही term: cathodic protection)
- Treating with acid (अम्ल से उपचार) → अम्ल धातु को नुकसान पहुँचाता है
- Exposing to sunlight (सूर्य के प्रकाश में रखना) → इससे corrosion नहीं रुकता
Extra Facts / अतिरिक्त जानकारी
- 👉 Corrosion is the chemical reaction of metals with air and moisture
👉 क्षरण धातु का हवा और नमी के साथ रासायनिक अभिक्रिया है - 👉 Other methods to prevent corrosion:
- Painting (रंग करना)
- Galvanization (जस्ता चढ़ाना)
- Oiling/Greasing (तेल लगाना)
- 👉 Rusting is corrosion of iron
👉 लोहे में जंग लगना corrosion का उदाहरण है
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