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प्रश्न
Write the chemical name of Lime water
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उत्तर
Calcium hydroxide Ca(OH)2
These droplets were present in the air as moisture which got condensed on the cooler walls of a glass tumbler. This shows the presence of water vapours in air.
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संबंधित प्रश्न
Why can’t we see air?
What do you observe when a burning candle is covered with an inverted jar.
Define rusting?
Fill in the blank
Although we cannot see air, we can ___it.
Write ‘true’ or ‘false for the following;
Air is a compound.
Tick (√) the correct alternative from the choice given for the following statement.
Photosynthesis is a process in which plants
Answer in your own words.
What are the various constituents of air? Write their uses.
With whom should I pair up?
| Group A | Group B | ||
| (1) | Air | (a) | Excretion |
| (2) | Water | (b) | Scattering of light |
| (3) | Soil | (c) | Plasticity |
Wind does not help in the movement of which of the following?
Explain the following observations very briefly
A firki does not rotate in a closed area.
