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Chemical Reactions and Equations — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceChemical Reactions and Equations2 Marks
Question
Give one example of an oxidation-reduction reaction which is also:
  1. A combination reaction.
  2. A displacement reaction.
✓

Answer

  1. $2\text{Cu}\ +\ \text{O}_2\ \ \ \ \ \xrightarrow{\ \ \ \ {\text{Heat}}\ \ \ \ \ }\ \ \ 2\text{CuO}\\ ^\text{Copper}\ \ \ \ \ ^\text{Oxgen}\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ ^\text{Copper Oxide}$

  2. $\text{CuO}\ \ \ \ +\ \  \ \text{H}_2\ \ \ \xrightarrow{\ \ \ \ {\text{Heat}}\ \ \ \ \ }\ \ \text{Cu} \ \ +\ \  \text{H}_2\text{O}\\ ^\text{Copper Oxide} \ \ ^\text{Hydrogen}\ \ \ \ \ \ \ \ \ \  \ \ \ \ ^\text{Copper }\ \  \ \ \ ^\text{Water}$

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