Question

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.

What is a homologous series of carbon compounds ? Write the name and formula of three successive members of the homologous series of compounds having functional group – COOH.

Write the name of two carbon compounds in which carbon atoms are arranged in the form of a ring. Draw the structure of any one of the two.

Identify the functional group present in the following compounds and also name them : (a) H-C-C-OH with H atoms attached to first carbon and double bond O attached to second carbon (b) H-C-H with double bond O attached to carbon

Write chemical equations for the following reactions, giving the conditions for the reaction in each case : (a) Reaction of ethanol with ethanoic acid (b) Reaction of an ester with a base (NaOH) (c) Formation of ethene from ethanol