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Chemistry · May / June 2016 · Paper 11 · Question 12

5070The mole and the Avogadro constant

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?

  1. ANH2CO2NH4
  2. B(NH2)2CO
  3. CNH4CO2NH4
  4. D(NH4)2CO3

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Correct answer: A. NH2CO2NH4

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