Abeaker containing 200ml of a staurated solution of ki )with some solid ki at the bottom of the beaker) at 25 degrees celsius is left standing to evaporate water at constant temperature until there is 100 ml of solution in the beaker compared to the original concentration the final concentration of ki is

Increased.

Explanation:

Given that in 200 mL of the beaker contains saturated solution of KI.

Whenever we allow the solution to heat or to evaporate, only water present in the solution evaporates because it is volatile while the salt is non volatile and thus do not evaporate.

When we decrease the volume of water in the beaker to 100 mL, the concentration of the salt, KI in the solution increases as the same amount of the salt is present in less amount of volume of the solvent.

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