The electron affinity value are negative for A. $\mathrm{Be \rightarrow Be^-}$ B. $\mathrm{N \rightarrow N^-}$ C. $\mathrm{O \rightarrow O^{2-}}$ D. $\mathrm{Na \rightarrow Na^-}$ E. $\mathrm{Al \rightarrow Al^-}$ Choose the most appropriate answer from the options given below :

JEE Main 2024 · ChemistryMultiple choiceOtherMediumConceptual

JEE Main 6 April 2024, Shift 1, Chemistry Q66

Question 66 of 90 in this shift, Chemistry question 6 of 30, Section A.

The electron affinity value are negative for A.

\mathrm{Be \rightarrow Be^-}

\mathrm{N \rightarrow N^-}

\mathrm{O \rightarrow O^{2-}}

\mathrm{Na \rightarrow Na^-}

\mathrm{Al \rightarrow Al^-}

Choose the most appropriate answer from the options given below :

(1)A, B and C only
(2)D and E onlyOfficial answer
(3)A and D only
(4)A, B, D and E only

Official answer

Option 2

NTA final key.

Chapter: Classification of Elements and Periodicity in Properties
Topic: Periodic Trends
Idea tested: Electron Gain Enthalpy

Same idea in other shifts

Asked 10× in all

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30 Jun 2022, Shift 1 · Q66The correct order of electron gain enthalpy ( $-$ ve value) is :EasySingle correct
26 Feb 2021, Shift 2 · Q33The correct order of electron gain enthalpy is :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 108 of the 174 JEE Main shifts held from 2017 to 2026.