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Acids, Bases And Salts_Proticity, Strength, PH And Indicators
Test Description: Proticity, Strength, pH and indicators
Instructions: Answer all questions to get your test result.
1) Which is a strong acid?
A
Sulfuric acid
B
Potassium carbonate
C
Ethanoic acid
D
Sodium hydroxide
2) Which is a weak base?
A
Sodium hydroxide
B
Potassium carbonate
C
Ethanoic acid
D
Sulfuric acid
3) What is the pH of a 1.0 x 10^-4 mol dm^-3 HCl solution?
A
-4
B
4.0
C
4.1
D
1.0
4) What is the colour of the solution when Universal indicator is added to pure water at 25 deg cel?
A
Red
B
Orange
C
Purple
D
Green
5) What is the colour of the solution when Universal indicator is added to a weak acid?
A
Red
B
Yellow
C
Blue
D
Purple
6) What is the pH of a 1.0 x 10^-4 mol dm^-3 NaOH solution?
A
4.1
B
10
C
4
D
10.1
7) Strength of acid affects __.
A
proticity of the acid
B
pH of the solution
C
amount of base required for complete neutralisation
D
concentration of the acid
8) Which method allows us to distinguish between a strong and weak acid?
A
Reaction with Mg strip
B
Titration with a base
C
Test for electrical conductivity using a light bulb
D
Use of blue litmus paper
9) Which method does not allow us to distinguish between an acid and an alkali?
A
Test for electrical conductivity using a light bulb
B
Use universal indicator
C
Reaction with ammonium carbonate, followed by gas tests
D
Use pH meter
10) What's the proticity of sulfuric acid?
A
4
B
3
C
2
D
1
*select an answer for all questions
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