O-LevelChemistryMetals & Reactivity5070/11 · Oct/Nov 2024 · Q241 Mark

Element X is in Group I. Some statements about element X are given. • X is not the least dense element in Group I. • X is more reactive than potassium. • X has an Ar value less than 100. Which element is X?

Alithium

Bsodium

Crubidium

Dcaesium

✓ Correct answer

C: rubidium

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Topic: Metals & Reactivity, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, Oct/Nov 2024 Paper 1 Variant 1, question 24.

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