While studying the saponification reaction, what do you observe when you mix an equal amount of colourless veegetable oil and 20% aqueous solution of NaOH in a beaker?
(a) The colour of the mixture has become dark brown.
(b) A brisk effervescence is taking place in the beaker
(c) The outer surface of the beaker has become hot
(d) The outer surface of the beaker has become cold.

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Solution

(c) The outer surface of the beaker has become hot.

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