Learn

Friday, 9 October

JEE Main 2025 · PhysicsMultiple choiceMatch the listMediumConceptual

JEE Main 3 April 2025, Shift 1, Physics Q44

Question 44 of 75 in this shift, Physics question 19 of 25, Section A.

Match the LIST-I with LIST-II LIST-I A. 01n+92235U→54140Xe+3894Sr+2 01n^{1}_{0}\mathrm{n} + {}^{235}_{92}\mathrm{U} \rightarrow {}^{140}_{54}\mathrm{Xe} + {}^{94}_{38}\mathrm{Sr} + 2\,{}^{1}_{0}\mathrm{n} B. 2H2+O2→2H2O2\mathrm{H_2} + \mathrm{O_2} \rightarrow 2\mathrm{H_2O} C. 12H+12H→23He+01n^{2}_{1}\mathrm{H} + {}^{2}_{1}\mathrm{H} \rightarrow {}^{3}_{2}\mathrm{He} + {}^{1}_{0}\mathrm{n} D. 11H+13H→12H+12H^{1}_{1}\mathrm{H} + {}^{3}_{1}\mathrm{H} \rightarrow {}^{2}_{1}\mathrm{H} + {}^{2}_{1}\mathrm{H} LIST-II I. Chemical reaction II. Fusion with +ve Q value III. Fission IV. Fusion with -ve Q value Choose the correct answer from the options given below:
  1. (1)A-III, B-I, C-II, D-IVOfficial answer
  2. (2)A-II, B-I, C-IV, D-III
  3. (3)A-III, B-I, C-IV, D-II
  4. (4)A-II, B-I, C-III, D-IV

Official answer

Option 1

NTA final key.

Chapter
Nuclei
Topic
Fission and Fusion
Idea tested
Q-Value Sign Convention

Same topic in other shifts

All Fission and Fusion questions
  1. 9 Apr 2024, Shift 1 · Q60A star has 100%100\% helium composition. It starts to convert three 4He{}^4\mathrm{He} into one 12C{}^{12}\mathrm{C} via triple alpha process…HardNumerical value
  2. 9 Apr 2024, Shift 2 · Q37The energy released in the fusion of 2 kg2\ kg of hydrogen deep in the sun is EHE_H and the energy released in the fission of 2 kg2\ kg of…MediumSingle correct
  3. 29 Jan 2024, Shift 1 · Q47The explosive in a Hydrogen bomb is a mixture of 1H2{}_1\mathrm{H}^2, 1H3{}_1\mathrm{H}^3 and 3Li6{}_3\mathrm{Li}^6 in some condensed form.…MediumSingle correct
  4. 30 Jan 2024, Shift 2 · Q47In a nuclear fission reaction of an isotope of mass MM, three similar daughter nuclei of same mass are formed. The speed of a daughter…MediumSingle correct
  5. 2 Sep 2020, Shift 1 · Q18In a reactor, 2 kg of 92U235_{92}\mathrm{U}^{235} fuel is fully used up in 30 days. The energy released per fission is 200 MeV. Given that the…MediumSingle correct

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.