C-2 Draw conductivity of an ionic agueou wtion Alsn a simple dingram of n instru

Question

C-2 Draw conductivity of an ionic agueou wtion Alsn a simple dingram of n instrumsent which,uldh s (2 pointsy decaneThen you have shaken the test tubes vigorously, for 30 seconds. After leaving it (2 points) A) Into a 20 mL stoppered test tube, you have added 5 ml. of each water, and to stand still, for 5 minutes, explain your observation. Which one would stay on top of B) Now to this mixture add 1mL of saturated iodine solution in water and repeat the above procedure and explain your findings. other, and why? (2 points)

Explanation / Answer

C-3

A.

Decane is a non polar molecule and water is polar molecule. So, they are immiscible. When two immiscible liquids are mixed, the liquid with lower density stays on top of the high dens liquid.

Density of decane is much lower as compared with water. So, decane is lighter than water and it stay on top of the water.

B.

Iodine is non polar molecule. When saturated iodine in water is added to the mixture, iodine in water prefer to enter into decane layer.

So, iodine colour will be darker in the top layer.

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