Which of the following is observed when a solution of iron (III) chloride is mixed with a solution of sodium hydroxide?
-
A.
A gas is evolved -
B.
A deep blue precipitate is formed -
C.
The resultant solution turns green turns -
D.
A brown precipitate is formed
Correct Answer: Option D
Explanation
iron(III) chloride is a yellow solution
sodium hydroxide is colourless
iron(III) hydroxide is a reddish brown precipitate
sodium chloride is colourless
So in the reaction, yellow solution when added to sodium hydroxide forms reddish brown precipitate that is insoluble in excess sodium hydroxide.