In a glass tube of uniform cross section, a mixture of HCl and Ar gases is sent from one end and a mixture of NH₃ and He gases is sent from the other end, at the same time. The white fumes of NH₄Cl wi

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In a glass tube of uniform cross section, a mixture of HCl and Ar gases is sent from one end and a mixture of NH₃ and He gases is sent from the other end, at the same time. The white fumes of NH₄Cl will appear first

TestHub · Accepted Answer

The inert diluents do not react; fumes form where HCl and NH₃ meet. NH₃ (M = 17) diffuses faster than HCl (M = 36.5), so the meeting point is closer to the HCl end. Confirms Ans: (c) closer to HCl end.

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