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Friday, 9 October

NEET UG 2018 · Chemistry · Question 80

NEET 2018 Chemistry, question 80

Question 80 of the NEET 2018 paper (code AA) is a Chemistry question from Hydrogen. Its idea, Classification of Hydrides, was asked twice, in 2018 and 2022, across NEET 2017–2026. The CBSE official answer key gives option 3.

Updated 2026-10-08

Q80 · Chemistry

Among CaH2\mathrm{CaH_2}, BeH2\mathrm{BeH_2}, BaH2\mathrm{BaH_2}, the order of ionic character is

  1. 1BeH2<BaH2<CaH2\mathrm{BeH_2 < BaH_2 < CaH_2}
  2. 2CaH2<BeH2<BaH2\mathrm{CaH_2 < BeH_2 < BaH_2}
  3. 3BeH2<CaH2<BaH2\mathrm{BeH_2 < CaH_2 < BaH_2}Official answer
  4. 4BaH2<BeH2<CaH2\mathrm{BaH_2 < BeH_2 < CaH_2}

Official answer: option 3 · CBSE official answer key

Same idea

Classification of Hydrides, in other papers

NEET asked this idea twice, in 2018 and 2022. The other question below.

  • 2022 Q66Match List - I with List - II. List - I (Hydrides) | List - II (Nature) (a) MgH2\mathrm{MgH_2} | (i) Electron precise (b) GeH4\mathrm{GeH_4} |…Match the lists · Medium

Classification of Hydrides: every question and how it was framed

The chapter

Hydrogen in ten years of NEET

6 questions from 2017–2026, asked in 6 of 10 papers, about 0.6 a paper. Hydrogen and Water alone had 6.

Chapter analysis

Hydrogen: questions per paper

0240’171’181’191’201’211’221’230’240’250’26