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O-LevelChemistryStoichiometry5070/11 · Oct/Nov 2015 · Q251 Mark

An element is burned in an excess of oxygen. Which statement about the oxide formed is always correct?

AThe mass of oxide formed is greater than the mass of element burned.
BThe oxide formed is a crystalline solid.
CThe oxide formed is soluble in water.
DThe oxide formed is white in colour.

✓ Correct answer

A: The mass of oxide formed is greater than the mass of element burned.

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About this question

Topic
Stoichiometry, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source
O-Level Chemistry, Oct/Nov 2015 Paper 1 Variant 1, question 25.

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