Which of the following is observed when a solution of iron (III) chloride is mixed with a solution of sodium hydroxide?
- A gas is evolved
- A deep blue precipitate is formed
- The resultant solution turns green turns
-
A brown precipitate is formed
The correct answer is: D
Explanation
iron(III) chloride is a yellow solutionsodium 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.