Question

A large crystal of potassium permanganate is added to a glass beaker containing water. After a few hours, the solution turns pink.
what should be done to ensure that the above change takes place in just a few minutes?

A. The water used should be throughly filtered.
B. Hot water should be used and the lump should be broken into smaller pieces.
C. Oil should be used instead of water.
D. A few crystals of copper sulphate should also be mixed in the water.​

Answer 1

Answer:

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