IG Chem – Electrolysis (I)

IG Chem – Electrolysis (I)

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Question 1 of 15

1. Question
1 point(s)
Compounds that can conduct electricity are called electrolytes.
- true
- false
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Question 2 of 15

2. Question
1 point(s)
Electrolysis occurs when an electric current decomposes an ionic compound in solid state.
- true
- false
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Question 3 of 15

3. Question
1 point(s)
The anode is the negative electrode.
- true
- false
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Question 4 of 15

4. Question
1 point(s)
In an electrolysis setup, the bulb will light if the solution in the beaker is an electrolyte.
- true
- false
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Question 5 of 15

5. Question
1 point(s)
Negative ions move to the anode during electrolysis.
- true
- false
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Question 6 of 15

6. Question
1 point(s)
The cathode is the positive terminal connected to the power supply.
- true
- false
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Question 7 of 15

7. Question
1 point(s)
During electrolysis, positive ions move to the anode.
- true
- false
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Question 8 of 15

8. Question
1 point(s)
Lead(II) bromide is ionically bonded and contains Pb²⁺ and Br⁻ ions.
- true
- false
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Question 9 of 15

9. Question
1 point(s)
During the electrolysis of molten lead(II) bromide, lead ions move to the anode.
- true
- false
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Question 10 of 15

10. Question
1 point(s)
The product at the anode in the electrolysis of molten lead(II) bromide is lead metal.
- true
- false
Correct

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Question 11 of 15

11. Question
1 point(s)
The reaction at the cathode during the electrolysis of lead(II) bromide is Pb²⁺(l) + 2e⁻ → Pb(l).
- true
- false
Correct

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Question 12 of 15

12. Question
1 point(s)
The reaction at the anode during the electrolysis of lead(II) bromide is 2Br⁻(l) → Br₂(g) + 2e⁻.
- true
- false
Correct

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Question 13 of 15

13. Question
1 point(s)
Hydrogen gas forms at the anode when dilute sulfuric acid is electrolysed.
- true
- false
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Question 14 of 15

14. Question
1 point(s)
The reaction at the cathode during the electrolysis of dilute sulfuric acid is 2H⁺(aq) + 2e⁻ → H₂(g).
- true
- false
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Question 15 of 15

15. Question
1 point(s)
When concentrated sodium chloride solution is electrolysed, chlorine gas is observed at the cathode.
- true
- false
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Incorrect