Advertisements
Advertisements
Question
State whether the following statement is ‘true’ or ‘false’. If false write the correct statement.
Air is a mixture and not a compound since the components of air cannot be separated by physical methods.
Options
True
False
Solution
False.
Correct statement: Air is a mixture and not a compound since the components of air can be separated by physical methods.
RELATED QUESTIONS
Match the following :
Column A | Column B |
(a) Global warming | 1. Hydrated ferric oxide |
(b) Acid rain | 2. Manganese dioxide |
(c) Rust | 3. Carbon dioxide |
(d) Catalyst | 4. Methane |
(e) Photosynthesis | 5. Nitrogen Dioxide |
Mention the contribution of the following scientists :
- Antoine Lavoisier
- Robert Boyle
- Joseph Priestley
- Sir W. Ramsay
How is air useful to water boats?
Name two air pollutants which cause acid rain.
Tick (√) the correct alternative from the choice given for the following statement.
Rust is
State the meaning of the term Atmosphere.
______ is important for all living creatures.
Cool and soothing wind: Breeze.
uproot trees wind: ______.
About 78% of the volume of air is ______.
Explain the following observations very briefly
The arrow of weather cock points towards a particular direction at a particular moment.