Question

Which of the following does not involve colligative properties?

a. When glucose concentration is greater outside the blood cell than inside the cell, water flows out of the cell.
b. Ethylene glycol is added to water, and the solution is used to keep ice from forming in a car’s engine.
c. Snowplows spread salt on cleared roadways during the winter to lower the freezing point of water and prevent melted snow from freezing.
d. Calcium silicide is added to liquid steel to increase the steel’s ability to freeze.

Answer 1

Hey there!

The correct answer to your question is:

Option D)
Calcium silicide is added to liquid steel to increase the steel’s ability to freeze.

Hope this helps!
Have a great day (:

Answer 2

Colligative properties are usually used in relation to solutions.
Colligative properties are those properties of solutions, which depend on the concentration of the solutes [molecules, ions, etc.] in the solutions and not on the chemical nature of those chemical species. Examples of colligative properties include: vapour pressure depression, boiling point elevation, osmotic pressure, freezing point depression, etc.
For the question given above, the correct option is D. This is because the statement is talking about freezing point elevation, which is not part of colligative properties.