SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Air is heavier than bromine
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Both have the same density
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Bromine is heavier than air
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Bromine can’t be heavier than air because it is going against the gravity.
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Detailed explanation-1: -When a gas jar containing colourless air is kept upside down over a gas jar full of brown-coloured bromine vapour, then after some time, the brown colour of bromine vapour spreads into the upper gas jar making both the gas jars appear brown in colour.
Detailed explanation-2: -Bromine is heavier than air and thus it will settle down in the bottom of the jar and air will rise at the top of the jar. Due to diffusion of particles the whole jar will appear as reddish-brown after the collision of particles.
Detailed explanation-3: -The particles of air and bromine vapour collide with each other and spread in all directions of the jar and they get uniformly mixed thus after some time the jar in which air is present also gets a red-brown colour and this process is known as diffusion.
Detailed explanation-4: -It is observed that after sometime, the reddish brown vapours of bromine also spread out into the upper jar. This mixing is called diffusion.
Detailed explanation-5: -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.