1.

(i) What is Hydrated salt? (ii) How is ethanoic acid prepared from ethanol? Give the chemical equation?

Answer»

Solution :(i) `*` When ionic substances are DISSOLVED in water to make their saturated aqueous solution, their ions attract water molecules and attached chemically in certain RATIO. This process is called hydration.
`*` The number of water molecules found in the crystalline substance is called water of CRYSTALLIZATION.
`*` Such salts are called hydrated salts.
`*` Eg. Blue VITRIOL `-CuSO_(4).5H_(2)O`
(ii) Ethanoic acid is prepared by the oxidation of ethanol in the presence of ALKALINE potassium permanganate or acidifiedpotassium dichromate.
`""underset("Ethanol")(CH_(3)CH_(2)OH)underset(2[O])overset(KMnO_(4)|OH^(-))(rarr)underset(("Ethanoic acid"))(CH_(3)COOH+H_(2)O)`


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