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Carbon and its Compounds — Science STD 10 — Question

CBSE BoardEnglish MediumSTD 10ScienceCarbon and its Compounds3 Marks
Question
  1. Draw the structures for:
  1. Ethanol.
  2. Ethanoic acid.
  1. Why is the conversion of ethanol to ethanoic acid considered an oxidation reaction? Write the oxidising agent used in the reaction involved.
✓

Answer

  1.  
  1. i. Ethanol- $C _2 H _5 OH / CH _3 CH _2 OH$.
$\ \ \ \ \ \ \ \ \ \text{H}\ \ \ \ \ \ \text{H}\\\\ \\ \ \ \ \ \ \ \ \ \ \ \text{|}\ \ \ \ \ \ \ \ \text{|}\\{\text{H}-\ {\text{C}}}\ -\text{C}-\text{OH}\\\\ \ \ \ \ \ \ \ \ \ \ \text{|}\ \ \ \ \ \ \ \ \text{|}\\ \ \ \ \ \ \ \ \ \ \text{H}\ \ \ \ \ \ \text{H}$
  1. Ethanoic Acid- $CH _3 COOH$.
$\ \ \ \ \ \ \ \ \ \ \ \text{H}\\ \ \ \ \ \ \ \ \ \ \ \ \ \text{|}\\ \text{H}\ \ -\ {\text{C}}\ \ -\text{C}\ \ -\text{OH}\\\ \ \ \ \ \ \ \ \ \ \ \ |\ \ \ \ \ \ \ \ || \\\ \ \ \ \ \ \ \ \ \ \ \text{H}\ \ \ \ \ \ \ \text{O}$
  1. As oxygen is added to ethanol.
Oxidizing agent - Alkaline $KMnO _4$ or Acidified $K _2 Cr _2 O _7$.

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