Q. The Iron Pillar near Qutub Minar draws attention of scientists due to its
(a) antiquity
(b) glitter
(c) hardness
(d) rustlessness
Ans: (d) restlessness
Explanation: The correct answer is (d) rustlessness.
The Iron Pillar near Qutub Minar in Delhi, India, draws attention from scientists due to its rustlessness. The Iron Pillar is a remarkable example of ancient metallurgy and ironworking. It is believed to date back to the 4th century CE and stands as a testament to the advanced ironworking techniques of that time.
What is particularly intriguing about the Iron Pillar is its resistance to rust and corrosion despite its age. The pillar is made of wrought iron and is known for its exceptional rust resistance. Despite being exposed to the elements for over a thousand years, the pillar has not significantly rusted or deteriorated.
This exceptional rust resistance has sparked scientific interest and investigation. Researchers have conducted various studies and experiments to understand the unique composition and manufacturing techniques used in the construction of the Iron Pillar. The pillar’s rustlessness has been attributed to the presence of a protective layer of iron oxide and phosphate, which forms a passive film on the surface, preventing further corrosion.
The Iron Pillar is an important archaeological and scientific curiosity, attracting the attention of scientists, metallurgists, and historians who seek to unravel the secrets behind its rust-resistant properties.
