Advertisements
Advertisements
प्रश्न
Explain why rusting of iron objects is faster in coastal areas than in deserts.
Advertisements
उत्तर
- Both air and moisture are required for rusting to take place. In coastal areas, the quantity of moisture present in the air is greater than that in deserts.
- The amount of moisture in the air is even lower in desert areas. Therefore, iron objects rust faster in coastal areas than in deserts.
APPEARS IN
संबंधित प्रश्न
Two methods by which rusting of iron can be prevented are ______ and ______.
What is meant by galvanisation? Why is it done?
Explain why, when a copper object remains in damp air for a considerable time, a green coating is formed on its surface. What is this process known as?
Brass is an alloy of:
(a) Cu and Sn
(b) Cu and Pb
(c) Pb and Sn
(d) Zn and Cu
Choose the correct alternative and rewrite the following:
Iron is _____________________.
Give reason.
Copper and brass utensils should be tinned.
Pressure cooker : Anodizing : : Silver plated spoons : _______
Find the odd one out and give its explanation.
A man painted his main gate made up of iron, to
- prevent it from rusting.
- protect it from sun.
- make it look beautiful.
- make it dust free.
Which of the above statement(s) is/are correct?
Explain the following:
Lime water turns milky on passing carbon dioxide gas into it.
