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JEE Main 2026 · Session 2 · Shift 1 · Chemistry

Question 52

What is the energy (in J atom⁻¹) required for the following process? Li²⁺(g) → Li³⁺(g) + e⁻ (Take the ionization energy for the H atom in the ground state as 2.18×10⁻¹⁸ J atom⁻¹)

  • A. 8.72×10⁻¹⁸
  • B. 1.962×10⁻¹⁸
  • C. 1.962×10⁻¹⁷Correct answer
  • D. 6.54×10⁻¹⁷

Not yet checked by a person: transcribed from the official question paper and matched against NTA’s official answer key by the question’s own ID on , never worked out independently. Spotted a mistake? Tell us and we’ll fix it. No explanation is published here yet.

Official source

https://cdnbbsr.s3waas.gov.in/s3f8e59f4b2fe7c5705bf878bbd494ccdf/uploads/2026/04/202604092096865379.pdf

Published by NTA. Last checked against this source on . Where the two disagree, the official notice is correct — tell us and we will fix it.

Question paper, page 20-21.