SS3: CHEMISTRY – 1ST TERM

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Volumetric Analysis (Titration) | Week 1

3 Topics
|
1 Quiz
- SS3: Chemistry – Volumetric Analysis (Titration)
Heat of Neutralization & Redox Titrations | Week 2

2 Topics
|
1 Quiz
1. Determination of Heat of Neutralization
2. Oxidation-Reduction Titration
- SS3: Chemistry – Heat of Neutralization & Redox Titrations | Week 2
Test for Common Gases | Week 3

2 Topics
|
1 Quiz
1. Test/Identification of Gases
2. Theory Questions – Test/Identification of Gases
- SS3: Chemistry – Test for Common Gases
Qualitative Analysis I | Week 4

3 Topics
|
1 Quiz
- SS3: Chemistry – Qualitative Analysis I
Qualitative Analysis II | Week 5

2 Topics
|
1 Quiz
1. Identification of Cations: Cu2+; Fe2+ and Fe3+
2. Theory Questions – Qualitative Analysis II
- SS3: Chemistry – Qualitative Analysis II
Qualitative Analysis III | Week 6

3 Topics
|
1 Quiz
Qualitative Analysis IV – Anions | Week 7

1 Topic
|
1 Quiz
1. Test for CO32-, SO32- and S2- Using Dilute Acids
- SS3: Chemistry – Qualitative Analysis IV
Test for Fat and Oil; Protein; Starch | Week 8

3 Topics
|
1 Quiz
- SS3: Chemistry – Test for Fat and Oil; Protein; Starch
Petroleum I | Week 9

4 Topics
|
1 Quiz
- SS3: Chemistry – Petroleum I
Petroleum II | Week 10

5 Topics
|
1 Quiz
- SS3: Chemistry – Petroleum II

Quizzes

SS3: Chemistry – 1st Term Examination

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SS3: Chemistry – 1st Term Examination

SS3: CHEMISTRY – 1ST TERM SS3: Chemistry – 1st Term Examination

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Question 1 of 16

1. Question
Calculate the volume of 0.5 mol dm^-3 H₂SO₄ that is neutralized by 25 cm³ of 0.1 mol dm^-3 NaOH
- 5.0 cm³
- 2.5 cm³
- 0.4 cm³
- 0.1 cm³
Correct

Incorrect
Question 2 of 16

2. Question
A solution of sodium hydroxide containing 6.0 g in 250 cm³ of solution has a concentration of

[Molar mass of NaOH = 40 g/mol]
- 0.04 mol dm^-3
- 0.15 mol dm^-3
- 0.60 mol dm^-3
- 0.96 mol dm^-3
Correct

Incorrect
Question 3 of 16

3. Question
The colour of methyl orange indicator in acidic medium is
- yellow
- pink
- orange
- red
Correct

Incorrect
Question 4 of 16

4. Question
0.05 mol dm^-3 HCl is neutralized by 25 cm³ NaOH. If the volume of acid used is 32.00 cm³, what is the concentration of the base?
- 0.016 mol dm^-3
- 0.032 mol dm^-3
- 0.039 mol dm^-3
- 0.064 mol dm^-3
Correct

Incorrect
Question 5 of 16

5. Question
The colour of phenolphthalein indicator in dilute HCl is
- colourless
- orange
- pink
- purple
Correct

Incorrect
Question 6 of 16

6. Question
Consider the reaction represented by the question below:

KOH_(aq) + HCI_(aq) → KCI_(aq) + H₂O_(l)

What volume of 0.25 mol dm^-3 KOH would be required to completely neutralize 40 cm³ of 0.10 mol dm ^-3 HCl?
- 40 cm³
- 32 cm³
- 24 cm³
- 16 cm³
Correct

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Question 7 of 16

7. Question
20 cm³ of 0.09 mol dm³ solution of tetraoxosuiphate(VI) acid requires 30 cm³ of sodium hydroxide solution for complete neutralization. The molar concentration of sodium hydroxide is

[H = 1; S = 32; 0 = 16; Na = 23]
- 0.03 mol dm^-3
- 0.12 mol dm^-3
- 0.27 mol dm^-3
- 0.45 mol dm^-3
- 0.90 mol dm^-3
Correct

Incorrect
Question 8 of 16

8. Question
Na₂CO₃_(aq) + 2HCl_(aq) → 2NaCl_(aq) + H₂O_(l) + CO_2(g)

How many moles of sodium trioxocarbonate(IV) is there in a 25 cm³ solution which requires 10 cm³ of 0.05 moldm^-3 hydrochloric acid solution to neutralize it?
- 0.0003 mole
- 0.1000 mole
- 0.0100 mole
- 0.0010 mole
Correct

Incorrect
Question 9 of 16

9. Question
What volume of 1.5 M solution of KOH_(aq) would contain 0.045 mole?
- 67.50 cm³
- 30.00 cm³
- 6.75 cm³
- 3.00 cm³
Correct

Incorrect
Question 10 of 16

10. Question
Consider the neutralization reaction represented by the following equation:

Na₂CO_3(aq) + 2HNO_3(aq) → 2NaNO_3(aq) + H₂O_(l) + CO_2(g)

The stoichiometric ratio of acid to base is
- 2:2
- 2:1
- 1:2
- 1:1
Correct

Incorrect
Question 11 of 16

11. Question
25 cm³ of 0.80 moldm^-3 hydrochloric acid neutralized 20 cm³ of sodium hydroxide solution . What is the concentration of sodium hydroxide in moldm^-3?

NaOH_(aq) + HCl_(aq) → NaCl_(aq) + H₂O_(l)
- 0.08
- 0.10
- 0.80
- 1.00
Correct

Incorrect
Question 12 of 16

12. Question
If 20 cm³ of distilled water is added to 80 cm³ of 0.50 moldm^-3 hydrochloric acid, the new concentration of the acid will be
- 0.10 mol dm^-3
- 0.20 mol dm^-3
- 0.40 mol dm^-3
- 2.00 mol dm^-3
Correct

Incorrect
Question 13 of 16

13. Question
If 5.00 cm³ of 0.20 moldm^-3 Na₂CO₃ was dilute with distilled water to obtain a 250 cm³ solution, what is the concentration of the resulting solution?
- 0.004 mol dm^-3
- 0.02 mol dm^-3
- 0.20 mol dm^-3
- 0.40 mol dm^-3
Correct

Incorrect
Question 14 of 16

14. Question
The colour of methyl orange in alkaline medium is
- yellow
- pink
- orange
- red
Correct

Incorrect
Question 15 of 16

15. Question
If 10 cm³ of distilled water is added to 10 cm³ of an aqueous salt solution , the concentration of the solution ____
- increases
- decreases
- remains constant
- doubles
Correct

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Question 16 of 16

16. Question
Which of the following apparatuses can be used to measure accurately a specific volume of a liquid ?
- beaker
- conical flask
- measuring cylinder
- pipette
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