JEE Main Chemistry · Solutions

Freezing Point Depression

Freezing Point Depression (Solutions) was asked 5 times in 5 JEE Main shifts, 2020–2024, out of the 42 shifts Lumi analysed. 4 of the 5 had a numerical answer.

Times asked: 5; in 5 shifts
Years: 2020–2024
Usual format: Numerical value; Multi-step
Pattern: Comes in cycles; repeats across shifts

How it is asked

Degree of dissociation from freezing point
Ranking of solutions by freezing point

Difficulty

Easy 2Medium 2Hard 1

Where it sits

Chapter: Solutions. Topic: Colligative Properties, 36 questions over 16 ideas.

All 5 questions

Newest first, each with its options and official answer.

6 Apr 2024, Shift 2 · Q84When ' $x$ ' $\times 10^{-2}$ mL methanol (molar mass $= 32$ g; density $= 0.792$ g/cm $^3$ ) is added to 100 mL water (density $= 1$ …MediumNumerical valueHas a figure
28 Jul 2022, Shift 1 · Q84150 g of acetic acid was contaminated with 10.2 g ascorbic acid ( $\mathrm{C_6H_8O_6}$ ) to lower down its freezing point by…EasyNumerical value
3 Aug 2021, Shift 2 · Q32The lowest freezing point among the following solutions will be observed in [Atomic weight : C = 12, Mg = 24, Na = 23, Cl = 35.5, O = 16,…EasySingle correct
18 Mar 2021, Shift 1 · Q542 molal solution of a weak acid HA has a freezing point of 3.885°C. The degree of dissociation of this acid is __________ $\times10^{-3}$ .…MediumNumerical value
9 Jan 2020, Shift 2 · Q46A cylinder containing an ideal gas (0.1 mol of 1.0 dm $^3$ ) is in thermal equilibrium with a large volume of 0.5 molal aqueous solution of…HardNumerical valueHas a figure