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Friday, 9 October

NEET UG 2024 · Chemistry · Question 61

NEET 2024 Chemistry, question 61

Question 61 of the NEET 2024 paper (code T2) is a Chemistry question from Thermodynamics. Its idea, Entropy Change Prediction, was asked 3 times, in 2019, 2020 and 2024, across NEET 2017–2026. The NTA final answer key gives option 1.

Updated 2026-10-08

Q61 · Chemistry

In which of the following processes entropy increases?

A. A liquid evaporates to vapour.

B. Temperature of a crystalline solid lowered from 130 K to 0 K.

C. 2 NaHCO3(s)_{3(s)} →\to Na2_2CO3(s)_{3(s)} + CO2(g)_{2(g)} + H2_2O(g)_{(g)}

D. Cl2(g)_{2(g)} →\to 2 Cl(g)_{(g)}

Choose the correct answer from the options given below:

  1. 1A, C and DOfficial answer
  2. 2C and D
  3. 3A and C
  4. 4A, B and D

Official answer: option 1 · NTA final answer key

Same idea

Entropy Change Prediction, in other papers

NEET asked this idea 3 times, in 2019, 2020 and 2024. The other 2 questions below.

  • 2020 Q127For the reaction, 2Cl(g)→Cl2(g)\mathrm{2Cl(g) \to Cl_2(g)}, the correct option is :One-line MCQ · Easy
  • 2019 Q86In which case change in entropy is negative ?One-line MCQ · Easy

Entropy Change Prediction: every question and how it was framed

The chapter

Thermodynamics in ten years of NEET

32 questions from 2017–2026, asked in 10 of 10 papers, about 3.1 a paper. Gibbs Free Energy alone had 7.

Chapter analysisStudy this chapterPractise this chapter

Thermodynamics: questions per paper

0364’174’183’193’202’212’222’234’243’255’26