JEE Main Van't Hoff Factor PYQ PDF is a free, 11-page resource containing 51 questions from the 2003-2026 papers. The topic recorded 1 question across the 2026 papers, with a reported weightage of 0.21% in the referenced database.
The PDF includes 26 MCQs alongside 25 numerical-value questions, with 3 statement-based questions. Questions are arranged from newest to oldest to help students practise recent exam patterns and revise key concepts.
The PDF Contains:
| 51 Questions | 11 Page | 0.21% ↓66.67% Weightage in 2026 | 2003-2026 years covered |
Van't Hoff Factor is a topic in the Class 12 Chemistry chapter Solutions. Every question carries its exam date and shift. The PDF holds questions only, with options as printed and no answer key.
JEE Main Van't Hoff Factor Weightage by Year
As per JEE Main Van't Hoff Factor weightage from past years, students can expect 1 to 9 questions from this topic in a year in recent papers. The 2026 papers had 1.
| Year | Questions | Average per Shift | Weightage in Chemistry | Change in Weightage |
|---|---|---|---|---|
| 2026 | 1 | 0.05 | 0.21% | −66.67% |
| 2025 | 3 | 0.16 | 0.63% | +278.95% |
| 2024 | 1 | 0.05 | 0.17% | −86.67% |
| 2023 | 9 | 0.38 | 1.25% | +115.00% |
| 2022 | 4 | 0.17 | 0.58% | −62.21% |
The 2021 papers add 12 more questions, and the years before that add 21. Weightage is the topic's share of all Chemistry questions in the bank for that year.
Question Formats in JEE Main Van't Hoff Factor PYQs
The 51 questions in this PDF are split between multiple-choice and numerical-value questions. Of the 51, 3 are statement-based.
| Question Type | Questions | Share |
|---|---|---|
| MCQ | 26 | 51.0% |
| Numerical value | 25 | 49.0% |
| Total | 51 | 100% |
How to Practise Van't Hoff Factor
Learn the van't Hoff factor i as the observed colligative property divided by the value calculated for a non-electrolyte, and its link to dissociation, i = 1 + α(n − 1), and association, i = 1 − α(1 − 1/n). Practise colligative property numericals that include i.
Then do the molar mass questions where i is needed to correct the result.
Video: Van't Hoff Factor PYQs
Source: JSM Learn
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