Analytical Chemistry Question 189
Question: An aqueous solution of $ FeSO_4,Al_2{{(SO_4)}_3} $ and chrome alum is heated with excess of $ Na_2O_2 $ and filtered. The materials obtained are:-
Options:
A) A colourless filtrate and a green residue.
B) A yellow filtrate and a green residue.
C) A yellow filtrate and a brown residue.
D) A green filtrate and a brown residue.
Show Answer
Answer:
Correct Answer: B
Solution:
[b] Green residue is due to $ Fe{{(OH)}_2} $ and yellow filtrate is due to chromate ions $ CrO_4^{2-} $
BETA
