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प्रश्न
State whether the following statement is true or false :
Red-brown bromine vapour diffuse into air in a gas jar but the colourless air molecules do not diffuse into bromine vapour.
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उत्तर
The statement given here is false. Air also diffuses into the bromine vapour but because air is colourless, we are not able to see its movement.
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संबंधित प्रश्न
Name two gases which are supplied in compressed form in homes and hospitals.
A bottle of perfume was opened in a room. The smell of its vapours spread in the entire room. Name the property of gases which is responsible for this behaviour of perfume vapours.
Name the three states of matter. Give one example of each.
A girl is cooking some food in the kitchen. The smell of food being cooked soon reaches her brother's room. Explain how the smell could have reached her brother's room.
Give one example of diffusion of gases in a liquid.
Explain why, when a bottle of perfume is opened in a room, we can smell it even from a considerable distance.
When a gas jar full of air is placed upside down on a gas jar full of bromine vapours, the red-brown vapours of bromine from the lower jar go upward into the jar containing air. In this experiment :
______ is not affected by gravity.
Which of the following is TRUE about gaseous state?
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| Fig. I | Fig. II |
In figure-I, an air column of length ℓ1 is entrapped by a column of Hg of length 8 cm. In figure-II length of same air column at the same temperature is ℓ2. The `ℓ_1/ℓ_2` is:
(1 atm = 76 cm of Hg)
