A colourless organic liquid X of molecular formula C2H4O2 turns blue litmus to red. Another colourless organic liquid Y of molecular formula C3H6O has no action on any litmus but it is used as a nail polish remover. A yet another colourless organic liquid Z of molecular formula C3H6O has also no action on litmus but it is used in tincture of iodine.

(a) Name the liquid X. To which homologous series does it belong? Give the name of another member of this homologous series.


(b) Name the liquid Y. To which homologous series does it belong? Write the name of another member of this homologous series.


(c) Can you name an organic compound having the same molecular formula as liquid Y but which belongs to a different homologous series? What is this homologous series?


(d) Name the liquid Z. To which homologous series does it belong? Write the name of another member of this homologous series.

(a) Liquid X is ethanoic acid; it belongs to homologous series of carboxylic acids. Propanoic acid is another member of this homologous series.

(b) Liquid Y is Propanone; it belongs to homologous series of ketones. Butanone is another member of this homologous series.


(c) Propanal is an organic compound having the same molecular formula as liquid Y; it belongs to homologous series of aldehydes.


(d) Liquid Z is ethanol; it belongs to homologous series of alcohols. Propanol is another member of this homologous series.


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