(a) Name the gas evolved when ethanol reacts with sodium. (b) What type of compound is formed
(a) Name the gas evolved when ethanol reacts with sodium.
(b) What type of compound is formed when a carboxylic acid reacts with an alcohol in the presence of cone. H2SO4 ?
(c) What will you observe when dilute ethanoic acid and dilute hydrochloric acid are put on universal indicator paper, one by one ? What does it show ?
1 Answers
(a) Hydrogen gas is evolved when ethanol reacts with sodium.
(b) Esters are formed when a carboxylic acid reacts with an alcohol in the presence of conc. H2SO4
(c) Dilute ethanoic acid turns universal indicator paper to orange, showing that its pH is about 4 which tell us that ethanoic acid is a weak acid. On the other hand, dilute hydrochloric acid turns universal indicator paper to red, showing that its pH is about 1. This shows us that hydrochloric acid is a strong acid.