Question

Take 2-3 crystals of potassium permanganate and dissolve them in 100 ml of water.

• Take out approximately 10 ml of this solution and put it into 90 ml of clear water.
• Take out 10 ml of this solution and put it into another 90 ml of clear water.
• Keep diluting the solution like this 5 to 8 times.
• Is the water still colored ?

Answer 1

Answer:

ys

Explanation:

because it can be colored 100 time approx

Answer 2

Yes, the water will still be coloured.

Dilution

• Initially, on adding 2-3 crystals of $K_{2}SO_{4}$ to a 100 ml beaker of water, the solution will turn dark pink in colour. This is due to the colour of potassium permanganate crystals.
• As the serial dilutions continue, however, the colour of the solution becomes paler and paler.
• This occurs since the number of potassium permanganate molecules decreases in relation to the water molecules with subsequent dilutions.

Thus the solution will be of a paler pink colour after 5 to 8 dilutions in comparison to the first solution and will get lighter with each dilution.