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A saturated organic compound 'A' with two carbon atoms belongs to the homologous series of alcohols. On oxidation, it forms an organic acid 'B' with molecular mass 60 u. On heating 'A' with excess concentrated sulphuric acid at 443 K, an unsaturated hydrocarbon 'C' is formed. (i) Name A, B and C. (ii) Calculate molecular mass of C. (iii) What happens when a pinch of sodium carbonate is added to compound B ? Write chemical equation for the reaction. (iv) Draw electron dot structure of compound B.
Why is the conversion of ethanol to ethanoic acid an oxidation reaction ? Name the oxidising agent used in this conversion. Write chemical equation for this oxidation reaction. How is this reaction different from the reaction in which ethanol burns in the presence of oxygen ?
How would you distinguish experimentally between an alcohol and a carboxylic acid?
How can ethanol and ethanoic acid be differentiated on the basis of their physical and chemical properties?
A carboxylic acid C₂H₄O₂ reacts with an alcohol in the presence of H₂SO₄ to form a compound 'X' . The alcohol on oxidation with alkaline KMnO₄, followed by acidification gives the same carboxylic acid, C₂H₄O₂. Write the name and structure of (a) carboxylic acid, (b) alcohol and (c) the compound 'X'.
A salt X is formed, and gas is evolved when ethanoic acid reacts with sodium hydrogen carbonate. Name the salt X and the gas evolved. Describe an activity and draw the diagram of the apparatus to prove that the evolved gas is the one you have named. Also, write a chemical equation of the reaction involved.
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