1.

Ferric chloride solution on standing gives a brown precipitate. Why?

Answer»

Solution :Ferric ion undergoes HYDROLYSIS in water to form ferric hydroxide,
`Fe^(3+) + 3H_2 Oto Fe(OH)_3+3H^(+)`
Ferric hydroxide FORMED as shown in the equation is LESS soluble in water.
Ferric hydroxide will be in the form of a BROWN precipitate.


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