If iodine and starch diffuses, a blue black color is observed on the other side.
Diffusion refers to the movement of a substance from a region of higher concentration to a region of lower concentration across a concentration gradient.
We can know that iodine has diffused across the dialysis tubing when we observe a brown color across the other side. If iodine and starch diffuses, a blue black color is observed on the other side.
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