Question

Explain the following:
(a) Lime water turns milky on passing carbon dioxide gas into it.
(b) Bubbles are produced when acetic acid is added to a solution of sodium hydrogen
carbonate.

Answer 1

Answer:

Answer: This is because of the formation of white coloured insoluble calcium carbonate which is milky. Carbon dioxide is evolved due to the chemical reaction between acetic acid and sodium hydrogencarbonate.

Explanation:

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Answer 2

Explanation:

(a) On passing CO2 in lime water the following reaction takes place :-

CaOH2 + CO2 ---- CaCO3 + H20

CaCO3 is insoluble in water due to which the lime water turns milky.

(b) When acetic acid and sodium hydrogen carbonate react with each other they produce CO2 which comes out as bubbles

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