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(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 conc. 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?
(a) When ethanol reacts with sodium, a rapid effervescence of hydrogen gas is observed.
(b) Esters are formed when carboxylic acid reacts with alcohol in the presence of concentrated sulphuric acid.
(c) When dilute ethanoic acid is put on a universal indicator paper, it turns the paper orange, marking the pH level to be 4. This shows that dilute ethanoic acid is a weak acid.
On the other hand, when dilute hydrochloric acid is dropped on the universal indicator paper, it turns the paper red, marking its pH level to be about 1. This shows that hydrochloric acid is a strong acid.
Updated on: 10-Oct-2022
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