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These substances are required to prove that the speed of diffusion is different for different substances. 

Monjur Alahi

These substances are required to prove that the speed of diffusion is different for different substances. 

A) Test tube, potassium permanganate, water 

B) Flask, copper sulphate, water 

C) Long glass tube, cotton, HCl, NH3 

D) Long glass tube, CuSO4 Sol., ZnSO4 Sol.


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Salim Ahmed Kawsar

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C) Long glass tube, cotton, HCl, NH3 

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Correct option is D) All

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