NSEC · Chemistry

s-Block Elements

Group 1 and 2 — alkali and alkaline-earth metal trends, anomalous behaviour and important compounds.

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About this topic in NSEC

  • Previous papers: 6 official question papers from Indian Association of Physics Teachers (IAPT) — 2025, 2024, 2023, 2021-22 and 1 earlier year.
  • Practice: 2 answer-checked practice questions on s-Block Elements for NSEC — practise them.
  • Next exam day: NSEC 2026-27 Exam: 22 Nov 2026 (Official, iapt.org.in).

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  • Q1 · s-Block Elements · MEDIUM

    Among the alkaline earth metals, which element shows anomalous behavior due to its small size and high polarizing power, making its compounds more covalent than those of other group members?

  • Q2 · s-Block Elements · MEDIUM

    Among the alkaline earth metals, which element exhibits anomalous behavior due to its small size and high charge density, forming covalent compounds and showing diagonal relationship with aluminum?

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