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प्रश्न
Iron pillar near the Qutub Minar in Delhi is famous for the following facts. Which of these facts is responsible for its long stability?
पर्याय
It is more than 7 metres high.
It weighs about 6000 kg.
It was built more than 1600 years ago.
It has not rusted after such a long period.
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उत्तर
It has not rusted after such a long period.
Explanation:
Iron pillar near Qutub Minar in Delhi is famous for its stability because it has not rusted over a long period.
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संबंधित प्रश्न
Tinning : Tin : : Galvanizing : _________
Answer the following question.
What are alloys?
Explain why rusting of iron objects is faster in coastal areas than in deserts.
Explain why Iron sheets are coated with zinc during galvanization.
What is the corrosion of iron known as?
A common metal which is highly resistant to corrosion is:
(a) iron
(b) copper
(c) aluminium
(d) magnesium
Bronze is an alloy of ______.
Corrosion of silver causes a black layer of _______.
Stainless steel is an alloy of _______.
Match the columns.
| Group A | Group B |
| 1) Electroplating | a) Pressure cooker |
| 2) Anodising | b) Silver plated spoons |
| c) Coating of tin on copper | |
| d) Coating of Zinc on iron |
