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Atoms and reactions

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Question 57

Which sample contains the greatest total number of atoms?

A

12.0 g of CH412.0\text{ g of } \text{CH}_412.0 g of CH4​

B

35.0 g of NH335.0\text{ g of } \text{NH}_335.0 g of NH3​

C

99.0 g of CO299.0\text{ g of } \text{CO}_299.0 g of CO2​

D

115.0 g of CO115.0\text{ g of } \text{CO}115.0 g of CO

Markscheme

Atoms and reactions Questions

  1. A Level
  2. /Chemistry
  3. /Atoms and reactions

199 exam-style questions on OCR A A Level Chemistry Atoms and reactions, covering Atomic structure and isotopes, Compounds, formulae and equations, Amount of substance, Acids, and Redox. Each one has a worked solution and a mark scheme showing where the marks go.

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