The iron pillar near the Qutub Minar in Delhi was built more than 1600

The iron pillar near the Qutub Minar in Delhi was built more than 1600 years ago by the iron workers of India. They had developed a process which prevented iron from rusting. For its quality of rust resistance it has been examined by scientists from all parts of the world. The iron pillar is 8 m high and weighs 6 tonnes (6000 kg).1. Where is the iron pillar located :a. Delhib. Mumbai2. Is the iron pillar rusted?a. YESb. NO3. The height of the Iron pillar is ____m.a. 5mb. 6m c. 8md. 7m4. Which of the following process is used presently to prevent rusting?a. Paintingb. Galvanization5. What is the chemical formula of Rust?a. Fe3O3 . n2H2Ob. Fe2O3 . n2H2O

Answer»

1. a. Delhi

2. b. NO

3. c. 8m

4. b. Galvanization

5. b. Fe₂O₃. n₂H₂O