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Saturday, 31 October

JEE Main · Chemistry · Solutions

Antifreeze Mass Calculations

JEE Main asked Antifreeze Mass Calculations 2 times in 2 of the 108 shifts Lumi analysed, in 2021 and 2024. It belongs to Colligative Properties, in Solutions (Chemistry). The longest wait between two years asking it was 3 years.

Updated 2026-10-24

Times asked
2
in 2 shifts
Years
2 of 8
First asked
2021
last in 2024
Pattern
Occasional
across the analysed shifts

Questions on this idea a shift, by year

2017–2026. Asked in 2021 and 2024. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.

00.050.10’170’200.03’210’220’230.05’240’250’26

Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 1 in 24 shifts · 2022: 0 in 24 shifts · 2023: 0 in 12 shifts · 2024: 1 in 18 shifts · 2025: 0 in 8 shifts · 2026: 0 in 9 shifts.

Shift by shift

Each square is one analysed shift, in date order. Open a filled one for that paper.

  • 20260 of 9
  • 20250 of 8
  • 20241 of 18
  • 20230 of 12
  • 20220 of 24
  • 20211 of 24
  • 20200 of 12
  • 20170 of 1

Asked in that shift More than once Not asked

How JEE Main framed it

Numerical value is the usual form. Skill tested: calculation.

  • Mass of antifreeze for given freezing point
  • Mass of solute to prevent freezing

Difficulty

Easy 1Medium 1Hard 0

2 of the 2 questions had a numerical answer.

Every question

All 2 questions

From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.

  1. 1 Feb 2024, Shift 2 · Q83Mass of ethylene glycol (antifreeze) to be added to 18.6 kg of water to protect the freezing point at −24∘C-24^\circ\mathrm{C} is ________ kg…EasyNumerical value
  2. 3 Aug 2021, Shift 1 · Q54The amount of ethyl alcohol (C2H5OH\mathrm{C_2H_5OH}) that should be added to 1kg of water so that the solution does not freeze at –4ºF…MediumNumerical value

Shifts: 3 Aug 2021, Shift 1, 1 Feb 2024, Shift 2.

Same topic

Other ideas in Colligative Properties

Colligative Properties has 21 ideas JEE Main has asked; 13 of them came up in more than one question. The 12 most asked are below.

Topic analysisChapter analysisStudy this chapterAll repeated ideas