Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
0 reads0 ratings0 helpful

In galvanisation, the zinc layer protects iron from contact with which substances?

Answer and explanation

Correct answer: Air and moisture

Galvanisation is the coating of iron or steel with zinc to prevent corrosion. Rusting requires iron to come into contact with oxygen in air and water or moisture. The zinc coating acts as a barrier, so air and moisture cannot readily reach the iron surface; zinc also offers sacrificial protection if scratched. Therefore option A is correct. Sound, light, salt, sugar, hydrogen and nitrogen are not the required pair for ordinary rusting.

Related tags

GalvanisationCorrosionRustingZinc CoatingMetals And Non-MetalsMetals And Non MetalsChemical Substances – Nature And BehaviourChemical Substances Nature And Behaviour

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.