alleryWhich famous Gupta-era metal monument resists corrosion strongly?
AIron Pillar of Delhi
BGreat Stupa at Sanchi
CDashavatara Temple
DLion Capital at Sarnath
Answer & Solution
Correct answer: A. Iron Pillar of Delhi
The Iron Pillar of Delhi has a protective layer of iron(III) hydrogen phosphate hydrate on its high-phosphorus iron.
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