(A) (a) What is meant by the term homologous series of carbon compounds ? Write molecular formula of any two…
(A) (a) What is meant by the term homologous series of carbon compounds ? Write molecular formula of any two consecutive members of homologous series of ketones.
(b) Write chemical equation of the reactions of ethanoic acid with
(i) Sodium hydroxide and
(ii) Ethanol (in the presence of an acid); giving the name of the products in each case.
(c) Draw the structure of the molecule of benzene.
Solution
(A)(a) A series of carbon compounds in which the same functional group or hetero-atom substitutes for hydrogen in a carbon chain. /A sequence of carbon compounds with same general formula and similar chemical properties.
CH3COCH3, CH3COC2H5 (Any other)
(b) (i) CH3COOH+NaOH → CH3COONa+H2O
Sodium ethanoate /Sodium acetate
(ii) C2H5OH+CH3COOH $\xrightarrow{\text{acid}}$ CH3COOC2H5 + H2O
Ester/Ethyl Ethanoate
(c) [Diagram: benzene ring structure]