A) near the ammonia bottle
B) near the hydrogen chloride bottle
C) at the centre of the tube
D) through out the tube
Correct Answer: B
Solution :
A bottle of dry ammonia and a bottle of dry hydrogen chloride connected through a long tube are opened at the same time at both ends. The white ammonium chloride formed will be near the hydrogen chloride bottle because rates of diffusion of gases are inversely proportional to the square root of their molecular weights. Hence, rate of diffusion of ammonia is greater than hydrogen chloride.
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