
Qualitative Analysis
Authored by KAMILY BALAN
Chemistry
10th Grade
Used 8+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What gas will be tested by placing a glowing wooden splinter into a test tube?
Nitrogen
Hydrogen
Oxygen
Carbon dioxide
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How to test sulphur dioxide gas?
Use damp blue litmus paper
Test with acidified potassium manganate (VII) solution
Use damp red litmus paper
Test with glass rod dipped into concentrated ammonia solution
3.
FILL IN THE BLANK QUESTION
1 min • 3 pts
Copper (II) nitrate salt, Cu(NO3)2 is heated with high heat in a boiling tube. State the observations on the colour of residue and the gases released
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
The following results are obtained in a laboratory activity to investigate the effect of heat on a sample of salt Y.
Colourless gas turns limewater cloudy
the colour of residue is yellow when it is hot and white when it is cooled
Identify salt Y.
5.
MULTIPLE SELECT QUESTION
45 sec • 3 pts
A green solid X was dissolved in water. The observation dissolves in water to produce green solution. What could be in solid X? (Multiple answer)
Chromium (III) chloride
Nickel (II) chloride
Copper (II) chloride
Iron (II) chloride
6.
FILL IN THE BLANK QUESTION
1 min • 2 pts
When an aqueous solution of a salt Q was tested with alkali solutions, the following observations was obtained.
A white precipitate that is insoluble in an excess of sodium hydroxide solution NaOH.
No change on the addition of ammonia solution, NH3 to the salt solution.
What cation may be present in the salt?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following ion could give an insoluble white precipitate in excess sodium hydroxide solution, NaOH?
Magnesium ion, Mg2+
Aluminium ion, Al3+
Lead (II) ion, Pb2+
Zinc ion, Zn2+
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