Question

Explain the following : (i) CH3COOH is a weak acid (ii) Propene undergoes addition reaction (iii) The gas stoves have inlets for air.

Answer 1

I)it has only a small amount of H+ ions present in it....
ii)as it is unsaturated hydrocarbon and to become saturated it goes on addition reaction...
iii)there are inlets provided so that the O2 supply can go on and blue flame can go on otherwise there would be sooting flame .....


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Answer 2

(1)Actually,Ethanoic acid (CH3COoH)are partially ionised in solution(to give a small number of hydrogen ions)so they are weak acids and also dilute ethanoic acid turns universal indicator paper to orange showing that its pH is about 4.This tell us that ethanoic acid is weak acid.

(2) Propene undergoes addition reaction reaction because it contain double bond and only those hydrocarbons which contain double or triple bond can only undergo addition reaction because they are unsaturated to make them self saturated they undergo addition reaction.

(3)The gas stove has holes(inlets) for air to mix properly with cooking gas (LPG) .The cooking gas gets sufficient oxygen from this air and hence burns completely producing blue flame.