Analytical Chemistry Question 149
Which one of the following metals will give blue ash when its salt is heated with $ Na_2CO_3 $ solid and $ Co(NO_3)_2 $ on a charcoal piece
[MNR 1987]
Options:
A) $ Cu $
B) $ Mg $
C) $ Al $
D) $ Zn $
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Answer:
Correct Answer: C
Solution:
$ CoAlO_2 $ is formed which is blue. Follow cobalt nitrate-charcoal test.
BETA
