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Friday, 9 October

NEET UG 2025 · Chemistry · Question 79

NEET 2025 Chemistry, question 79

Question 79 of the NEET 2025 paper (code 45) is a Chemistry question from Solutions. Its idea, Boiling-Point Elevation and van't Hoff Factor, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 3.

Updated 2026-10-08

Q79 · Chemistry

Which of the following aqueous solution will exhibit highest boiling point?

  1. 10.01M Urea
  2. 20.01M KNO3KNO_3
  3. 30.01M Na2SO4Na_2SO_4Official answer
  4. 40.015M C6H12O6C_6H_{12}O_6

Official answer: option 3 · NTA final answer key

Same idea

The only question on Boiling-Point Elevation and van't Hoff Factor

No other NEET paper from 2017–2026 tested this exact idea.

Boiling-Point Elevation and van't Hoff Factor: every question and how it was framed

The chapter

Solutions in ten years of NEET

16 questions from 2017–2026, asked in 8 of 10 papers, about 1.6 a paper. Solutions and Colligative Properties alone had 16.

Solutions: questions per paper

0242’170’182’192’202’211’220’232’243’252’26