Q7 of 22 Page 33

Galvanisation is a process used to prevent the rusting of which of the following?

To prevent rusting of iron, we apply layer of zinc on its surface. This process is called galvanization.

More from this chapter

All 22 →
5

A man painted his main gate made up of iron, to

(i) prevent it from rusting.


(ii) protect it from sun.


(iii) make it look beautiful.


(iv) make it dust free.


Which of the above statement(s) is/are correct?

 6

Iron pillar near the Qutub Minar in Delhi is famous for the following facts. Which of these facts is responsible for its long stability?

 8

Paheli’s mother made a concentrated sugar syrup by dissolving sugar in hot water. On cooling, crystals of sugar got separated. This indicates a-

 9

Which of the following statement is incorrect for a chemical reaction?