Advertisements
Advertisements
Question
What are the two necessary conditions for rusting of iron?
Advertisements
Solution
Conditions for rusting:
- Presence of moisture (water).
- Presence of oxygen (air).
APPEARS IN
RELATED QUESTIONS
Answer the question put against the following constituents of air :
Water vapours : Explain their role in modifying the earth’s climate.
Explain the conversion of nitrogen into nitrates during lightning.
Name the main components of air.
Describe a simple experiment to show that l/5th of air is oxygen.
Statement given below is incorrect. Write the correct statement :
Helium gas at low pressure is used for filling electric bulbs.
Give two examples of modern fuels.
Give reason:
A burning candle stops burning if covered with a glass tumbler
Fill in the blank
Aquatic plants and animals use _________ in water.
Give word equation for the following conversion:
Nitric oxide to nitrogen dioxide
During respiration, carbon-di-oxide is exhaled out of the body through the ______.
