Which solution has the lowest freezing point?
(1) 10. g of ki dissolved in 100. g of water
(2) 20. g of ki dissolved in 200. g of water
(3) 30. g of ki dissolved in 100. g of water
(4) 40. g of ki dissolved in 200. g of water

(3) 30 g of KI dissolved in 100 g of water

Explanation: Formula used for lowering in freezing point is,

or,

where,

= change in freezing point

= freezing point constant

m = molality

1) 10 g of KI dissolved in 100 g of water:

2) 20 g of KI dissolved in 200 g of water

3) 30 g of KI dissolved in 100 g of water

As the depression is maximum, the solution will have lowest freezing point.

4)  40 g of KI dissolved in 200 g of water

answer: the primary difference between a hypothesis and a theory is that b hypothesis is falsifiable, but a theory has been proven to be correct. theory is an explanation of something that is happening but hypothesis is a guess of something that can happen

explanation: