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 hydrogencarbonate.

Answers (1)

(a) Lime water turns milky on passing carbon dioxide gas into it because White coloured insoluble calcium carbonate is formed.

(b) Bubbles are produced when acetic acid is added to a solution of sodium hydrogencarbonate because carbon dioxide is evolved due to the chemical reaction between acetic acid and sodium hydrogen carbonate.

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