MCQGeeks
0 : 0 : 1
CBSE
JEE
NTSE
NEET
English
UK Quiz
Quiz
Driving Test
Practice
Games
Home
GCSE
Gcse Chemistry
Analysing Substances - Qualitative
1
2
3
4
5
6
7
8
9
10
Q.1
If dilute nitric acid and silver nitrate are added to an unknown solution and a cream precipitate appears, we can tell that the ions that are present are...
0%
chloride ions
0%
bromide ions
0%
iodide ions
0%
chlorine ions
Q.2
Flame tests can be used to identify metals in groups 1 and 2 of the Periodic Table. Which metal burns with an intense yellow/orange flame?
0%
Lithium
0%
Sodium
0%
Potassium
0%
Calcium
Q.3
Which of the following ions dissolves in excess sodium hydroxide solution?
0%
Magnesium 2+
0%
Aluminium 2+
0%
Calcium 2+
0%
Aluminium 3+
Q.4
The copper oxide that is produced when copper carbonate is heated is what colour?
0%
White
0%
Green
0%
Black
0%
Purple
Q.5
If ammonia gas is produced when sodium hydroxide is added to an unknown solution, what ions were present in the unknown solution?
0%
Ammonium + ions
0%
Ammonium - ions
0%
Copper 2+ ions
0%
Iron 3+ ions
Q.6
A positive test for nitrate ions would give which of the following observations?
0%
A lemon-yellow colour when hot and turns to white when cool
0%
A pale yellow precipitate
0%
A dirty green precipitate
0%
Damp red litmus paper turning blue
Q.7
Some metal ions form coloured precipitates with sodium hydroxide. Which metal ion forms a light blue precipitate when reacted with sodium hydroxide?
0%
Copper (II) ions
0%
Iron (II) ions
0%
Iron (III) ions
0%
Cobalt ions
Q.8
What is used to identify an unsaturated compound?
0%
Bromine water
0%
Dilute nitric acid
0%
Barium sulfate
0%
Aluminium powder
Q.9
How do we test for sulfate ions?
0%
Add dilute nitric acid
0%
Heat and look for colour changes
0%
Add hydrochloric acid and barium chloride solution
0%
Add sodium hydroxide and warm it, then add aluminium powder
Q.10
If iodine solution is added to ethane, what observation would be made?
0%
Remains brown
0%
Changes from brown to black
0%
Changes from brown to purple
0%
Changes from brown to brick red
0 h : 0 m : 1 s
1
2
3
4
5
6
7
8
9
10
Report Question
×
What's an issue?
Question is wrong
Answer is wrong
Other Reason
Want to elaborate a bit more? (optional)
Support mcqgeeks.com by disabling your adblocker.
×
Please disable the adBlock and continue.
Thank you.
Reload page