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3.3 Yield and atom economy of chemical reactions

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Question 8
F

In each equation, the desired product is the first product shown.

Which reaction has an atom economy of 100 %?

[1]
A

CaCO3→CaO+CO2\mathrm{CaCO_3 \rightarrow CaO + CO_2}CaCO3​→CaO+CO2​

B

Mg+2HCl→MgCl2+H2\mathrm{Mg + 2HCl \rightarrow MgCl_2 + H_2}Mg+2HCl→MgCl2​+H2​

C

NaOH+HCl→NaCl+H2O\mathrm{NaOH + HCl \rightarrow NaCl + H_2O}NaOH+HCl→NaCl+H2​O

D

C2H4+H2O→C2H5OH\mathrm{C_2H_4 + H_2O \rightarrow C_2H_5OH}C2​H4​+H2​O→C2​H5​OH

Markscheme

3.3 Yield and atom economy of chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /3.3 Yield and atom economy of chemical reactions

39 exam-style questions on AQA GCSE Chemistry 3.3 Yield and atom economy of chemical reactions, covering 3.3.1a Percentage yield, 3.3.1b Theoretical mass of a product, 3.3.2a Atom economy, and 3.3.2b Choosing a reaction pathway. Each one has a worked solution and a mark scheme showing where the marks go.

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