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Quiz 1 of0

Chem Practical Quiz: Titration

Chem Practical Quiz: Titration

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Question 1 of 13

1. Question
How would you record the following liquid in the burette?
- 19.8 cm3
- 19.80 cm3
- 20.0 cm3
- 20.00 cm3
Correct

Incorrect
Question 2 of 13

2. Question
How would you record the volume of the following liquid in a measuring cylinder?
- 74 cm3
- 74.0 cm3
- 75 cm3
- 75.0 cm3
Correct

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Question 3 of 13

3. Question
Plot a graph of volume of gas produced against time. Which of the following is correct?
- x axis: volume of gas produced
- y axis: volume of gas produced
Correct

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Question 4 of 13

4. Question
Which of the following is not a suggested scale to draw for values between 0 to 50 cm³?
- 0, 5, 10, 15, 20, 25, etc
- 0, 10, 20, 30, etc
- 0, 3, 6, 9, 12, etc
Correct

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Question 5 of 13

5. Question
Graph drawn must occupy at least ______ % of the graph paper provided.
- 25
- 50
- 80
- 100
Correct

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Question 6 of 13

6. Question
What is the duration and marks allocated for the Practical Paper?
- 1 hr 30 min ; 50 marks
- 1 hr 45 min ; 40 marks
- 1 hr 45 min ; 50 marks
- 1 hr 30 min ; 40 marks
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Question 7 of 13

7. Question
What should be carried before starting Titration experiment?
- Rinse the burette with distilled water only.
- Rinse the burette with the solution given.
- Rinse both pipette and burette with the respective solutions given.
- Rinse both pipette and burette with distilled water followed by solutions.
Correct

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Question 8 of 13

8. Question
What is the purpose of adding indicator into the conical flask during Titration?
- To add colours to life.
- To contaminate the solution.
- To allow us to know the point of neutralisation.
Correct

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Question 9 of 13

9. Question
How would you record the reading on the thermometer shown?
- 87.5 oC
- 92.5 oC
- 88 oC
- 87 oC
Correct

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Question 10 of 13

10. Question
Which of the following is not an example of source of error?
- Heat loss to the surrouding
- Colour change of the indicator is difficult to be discerned by najed eyes
- Parallax error
- Inconsistent stirring
Correct

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Question 11 of 13

11. Question
How do you calculate concentration in mol/dm³?
- mol x volume of solution in dm3
- mol ÷ volume of solution in dm3
- concentration in g/dm3 x Mr
- mol x volume of solution in cm3
Correct

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Question 12 of 13

12. Question
How would the titration results be affected if there are bubbles in the pipette?
- The results will be higher than the actual volume required.
- The results will be lower than the actual volume required.
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Question 13 of 13

13. Question
An experiment is conducted to study the effect of concentration of acid on the speed of reaction with Mg. Which is true?
- Independent variable: vol of gas produced per 10s
- Dependent variable: vol of gas produced per 10s
- Constant variable: concentration of acid
Correct

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