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A bottle of dry ammonia and a bottle of ...

A bottle of dry ammonia and a bottle of dry hydrogen chloride connected through a long tube are opened simultaneously at both ends. The white ammonium chloride ring first formed will be

A

at the centre of the tube

B

near the hydrogen chloride bottle

C

near the ammonia bottle

D

throughout the length of the tube

Text Solution

Verified by Experts

The correct Answer is:
B
Mol. Mass of `NH_(3) = 17`,
Mol. Mass of `HCl = 36.5`
Rate of diffusion, `r prop sqrt((1)/("Mol. Mass"))`
`:. NH_(3)` will diffuse faster than HCl.
`:. NH_(3)` vapour will travel a longer distance than HCl vapour in same time.
`:.` Ring formed will be nearer HCl bottle
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