Advertisements
Advertisements
Question
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 :
Options
air is heavier than bromine
both air and bromine have the same density
bromine is heavier than air
bromine cannot be heavier than air because it is going upwards against gravity
Advertisements
Solution
Bromine is heavier than air
APPEARS IN
RELATED QUESTIONS
The mass per unit volume of a substance is called density.
(density = mass/volume).
Arrange the following in order of increasing density-
air, exhaust from chimneys, honey, water, chalk, cotton and iron.
Which of the two diffuses faster : a liquid or a gas?
When an incense stick (agarbatti) is lighted in one corner of a room, its fragrance quickly spreads in the entire room. Name the process involved in this.
Explain why, diffusion occurs more quickly in a gas than in a liquid.
Why does a gas fill a vessel completely?
Look at the diagram on the right side. Jar A contains a red-brown gas whereas jar B contains a colourless gas. The two gas jars are separated by a galas plate placed between them
- What will happen when the glass plate between the two jars is pulled away?
- What name is given to the phenomenon which takes place?
- Name the brown gas which could be in jar A.
- Which is the colourless gas most likely to be present in jar B?
- Name one coloured solid and one colourless liquid which can show the same phenomenon.
Why do gases not have fixed shape?
Comment upon the following:-
fluidity
Comment upon the following:-
shape
Which of the following is false for gases?
