Four rubber tubes are respectively filled with H _2, O _2, N _2 and He. The tube that will deflate first is

JEE Main Chemistry question

Four rubber tubes are respectively filled with , , and He. The tube that will deflate first is

Answer: (A)

By Graham's law, the rate of diffusion (effusion) is highest for the lightest gas. () has the smallest

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Question ID VK-134296