Chemical Tests Flashcards
1
Q
Method for carrying out a Flame Test
A
- clean platinum wire by dipping in hydrochloric acid
- then put wire into metal salt
- place in flame
2
Q
Li+
A
Red
3
Q
Na+
A
Orange
4
Q
K+
A
Purple
5
Q
Ca2+
A
Brick Red
6
Q
Test for Ammonium ion , NH4+
A
- add SODIUM HYDROXIDE
- test gas produced, with DAMP RED litmus paper
- Litmus paper will turn BLUE
7
Q
Cu2+
A
Blue
8
Q
Fe2+
A
Green
9
Q
Fe3+
A
Rust Brown
10
Q
Cl-
A
White
11
Q
Br-
A
Cream
12
Q
I-
A
Yellow
13
Q
Ag+ (aq) + Cl- (aq) =
A
AgCl (s)
14
Q
Ag+ (aq) + Br- (aq) =
A
AgBr (s)
15
Q
Ag+ (aq) + I- (aq) =
A
Agl (s)
16
Q
Test for Sulphate anion
A
- Hydrochloric acid
- add solution of Barium Chloride
- WHITE precipitate produced = Barium Sulphate
17
Q
Test for Carbonate anion
A
- Hydrochloric Acid
- Bubble the gas (Co2) produced through Limewater
- Turns CLOUDY
18
Q
Chemical test for water
A
- Copper (II) Sulphate : White to Blue
- Colbalt (II) Chloride : Blue to Pink
19
Q
Hydrogen
A
Lighted Splint
Squeaky pop
20
Q
Oxygen
A
Glowing Splint
Relights
21
Q
Carbon Dioxide
A
Limewater
Cloudy / milky
22
Q
Ammonia
A
Damp Red Litmus Paper
Litmus paper turns blue
23
Q
Chlorine
A
Damp litmus paper
Bleaches / Turns white
