O-LevelChemistryStoichiometry5070/11 · May/June 2016 · Q121 Mark

Compound P is the only substance formed when two volumes of ammonia gas react with one volume of carbon dioxide gas (both volumes being measured at r.t.p.). What is the formula of P?

ANH₂CO₂NH₄

B(NH₂)₂CO

CNH₄CO₂NH₄

D(NH₄)₂CO₃

✓ Correct answer

A: NH₂CO₂NH₄

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Topic: Stoichiometry, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2016 Paper 1 Variant 1, question 12.

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