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A student studies the properties of Acet...

A student studies the properties of Acetic Acid in his school laboratory. Write two observations of the reaction that occurs when he adds a pinch of sodium bicarbonate powder to 5 ml acetic taken in a test tube.

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Two observations are :
(i) A gas with brisk effervescence is evolved,
(ii) Lime water turns milky when this gas is passed through it.
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