A-LevelChemistryAtoms, molecules and stoichiometry9701/12 · Oct/Nov 2023 · Q31 Mark

Zinc reacts with concentrated nitric acid giving three products only: zinc nitrate, an oxide of nitrogen and water. 3.0 moles of zinc react with 8.0 moles of nitric acid. Zinc nitrate contains Zn²⁺ ions. What could be the formula of the oxide of nitrogen?

AN2O

BNO

CN2O3

DNO2

✓ Correct answer

B: NO

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Topic: Atoms, molecules and stoichiometry, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Oct/Nov 2023 Paper 1 Variant 2, question 3.

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