Choose the solvent below that would show the greatest freezing point lowering when used to make a 0.20 m nonelectrolyte solution. diethyl ether, kf = 1.79°c/m benzene, kf = 5.12°c/m chloroform, kf = 4.70°c/m ethanol, kf = 1.99°c/m carbon tetrachloride, kf = 29.9°c/m

Answer : Carbon tetrachloride, will show the greatest freezing point lowering.

Explanation :

For non-electrolyte solution, the formula used for lowering in freezing point is,

where,

= lowering in freezing point

= molal depression constant

m = molality

As per question, the molality is same for all the non-electrolyte solution. So, the lowering in freezing point is depend on the only.

That means the higher the value of , the higher will be the freezing point lowering.

From the given non-electrolyte solutions, the value of of carbon tetrachloride is higher than the other solutions.

Therefore, Carbon tetrachloride, will show the greatest freezing point lowering.

the mantle

explanation:

earth is divided into three layers: the crust or the outermost layer on which we live; the underlying, middle layer - the mantle - and the core (the innermost layer of earth).

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be