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Atoms and reactions

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Question 36

Which chemical process is the most sustainable in terms of the atom economy of the copper produced?

A

CuO+CO→Cu+CO2\text{CuO} + \text{CO} \rightarrow \text{Cu} + \text{CO}_2CuO+CO→Cu+CO2​

B

CuO+H2→Cu+H2O\text{CuO} + \text{H}_2 \rightarrow \text{Cu} + \text{H}_2\text{O}CuO+H2​→Cu+H2​O

C

2CuO→2Cu+O22\text{CuO} \rightarrow 2\text{Cu} + \text{O}_22CuO→2Cu+O2​

D

2CuO+C→2Cu+CO22\text{CuO} + \text{C} \rightarrow 2\text{Cu} + \text{CO}_22CuO+C→2Cu+CO2​

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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