Identify the statement(s) that is/are NOT true for Group 1 elements:

ICSE Class 10 Chemistry PYQ · 2026 Improvement · Section A

1(iv)1 Mark · 2026 · Section A · 2026 Improvement

Identify the statement(s) that is/are NOT true for Group 1 elements:

  1. They are good conductors of heat.
  2. They are good conductors of electricity.
  3. They are strong oxidising agents.
  4. They form covalent compounds with non-metals.
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Both 3 and 4

Reason — Group 1 elements (alkali metals) are good conductors of heat and electricity, so statements 1 and 2 are true. They readily lose their single valence electron, so they are strong reducing agents (not oxidising agents); hence statement 3 is false. They form ionic (electrovalent) compounds, not covalent compounds, with non-metals; hence statement 4 is also false.

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