1.

A student is studying the properties of acetic acid. List two physical properties of acetic acid he observe. What happens when he adds a pinch of sodium hydrogen carbonate to this acid? Write any two observations.

Answer»

Solution :Physical properties of acetic ACID observed are:
(i) Acetic acid is a colourless liquid.
(ii) It is miscible or soluble liquid.
On adding apinch of sodium hydrogen carbonate,
(i) brisk EFFERVESCENCE is observed.
(ii) there is EVOLUTION of a colourless and odourless GAS.


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