Positive ion tests Flashcards
1
Q
Green/blue flame
A
Copper
2
Q
Light red flame
A
Calcium
3
Q
Lilac flame
A
Potassium
4
Q
Yellow flame
A
Sodium
5
Q
Brick Red flame
A
Lithium
6
Q
If the flame test produces no change what do you do?
A
Add sodium hydroxide
7
Q
Light blue precipitate formed =
A
Copper
8
Q
Reddish brown precipitate formed =
A
Iron (III)
9
Q
Green precipitate formed=
A
Iron (II)
10
Q
White precipitate formed =. And what do u do
A
Either magnesium, calcium or aluminium
Add sodium hydroxide
11
Q
Adding sodium hydroxide to white precipitate
Dissolve =
Doesn’t dissolve =
Then what?
A
Dissolve = Aluminium
Doesn’t dissolve= either magnesium or calcium
So do flame test
12
Q
Green flame
A
Barium
