Question

Which of the following pair will not diffuse into one another

Answer 1

question incomplete

if they have same concentration, no diffusion takes place

Answer 2

Here is your answer mate:-

The pair which does not show any kind of diffusion is salt and sand. These particles are solid and does not melt when they come in contact with water or any other liquid substance. Both have unique identities and hence cannot diffuse when mixed together by any means.

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