O-LevelChemistryMetals & Reactivity5070/11 · May/June 2015 · Q221 Mark

Which element is sodium?

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ARow A: melting point in °C 1535, electrical conduction good, density in g/cm³ 7.86

BRow B: melting point in °C 1083, electrical conduction good, density in g/cm³ 8.92

CRow C: melting point in °C 113, electrical conduction poor, density in g/cm³ 2.07

DRow D: melting point in °C 98, electrical conduction good, density in g/cm³ 0.97

✓ Correct answer

D: Row D: melting point in °C 98, electrical conduction good, density in g/cm³ 0.97

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Topic: Metals & Reactivity, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2015 Paper 1 Variant 1, question 22.

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