Alcohols

Last updated: 09/02/2020

WJEC A-Level Chemistry Unit 2.7 – Alcohols and carboxylic acids Alcohols

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Question 1 of 20

1. Question
What is the general formula of an alcohol?
- $C_nH_{2n+1}OH$
- $C_nH_{2n}OH$
- $C_nH_nOH$
- $C_nH_{2n-1}OH$
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Question 2 of 20

2. Question
What is the functional group in an alcohol?
- OH
- CH
- COO
- COOH
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Question 3 of 20

3. Question
What is the definition of volatile?
- Evaporates easily at room temperature
- Low melting and boiling points
- High melting and boiling points
- Easily flammable
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Question 4 of 20

4. Question
What is the definition of a primary alcohol?
- An alcohol with an OH group attached to the end of the chain
- An alcohol with an OH group attached to a carbon atom with three alkyl chains attached
- An alcohol with an OH group attached to a carbon atom with two alkyl chains and one hydrogen atom attached
- An alcohol with no branching
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Question 5 of 20

5. Question
What is the definition of a secondary alcohol?
- An alcohol with an OH group attached to a carbon atom with two alkyl chains and one hydrogen atom attached
- An alcohol with no branching
- An alcohol with an OH group attached to a carbon atom with three alkyl chains attached
- An alcohol with an OH group attached to the end of the chain
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Question 6 of 20

6. Question
What is the definition of a tertiary alcohol?
- An alcohol with an OH group attached to a carbon atom with three alkyl chains attached
- An alcohol with an OH group attached to the end of the chain
- An alcohol with an OH group attached to a carbon atom with two alkyl chains and one hydrogen atom attached
- An alcohol with no branching
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Question 7 of 20

7. Question
What type of intermolecular forces are present in alcohols?
- Hydrogen bonding
- Ionic bonding
- Metallic bonding
- Electrostatic bonding
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Question 8 of 20

8. Question
Describe the relationship between the chain length of an alcohol and boiling point.
- As chain length increases the boiling point increases
- Boiling point remains the same for all chain lengths
- As chain length decreases the boiling point increases
- There is no correlation between chain length and boiling points
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Question 9 of 20

9. Question
Why does the boiling point of alcohols increase as chain length increases?
- More surface area contacts leading to stronger induced dipole-dipole interactions that need more energy to overcome
- A larger number of atoms with more london forces that need more energy to overcome
- More surface area contacts leading to more induced dipole-dipole interactions that need more energy to overcome
- A larger number of atoms leading to stronger covalent bonds that need more energy to overcome
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Question 10 of 20

10. Question
Why do alcohols have a higher boiling point that alkanes?
- Contain the strongest type of intermolecular forces, hydrogen bonding
- Contain the strongest type of intermolecular forces, covalent bonding
- Contain the strongest type of intermolecular forces, London forces
- Contain the strongest type of intermolecular forces, van der Waal’s forces
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Question 11 of 20

11. Question
Describe the relationship between volatility of alcohols and boiling point.
- There is no relationship between volatility and boiling point
- As the boiling point increases, volatility decreases
- As the boiling point increases, volatility increases
- Volatility stays the same as boiling point increases
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Question 12 of 20

12. Question
Why are alcohols more volatile than alkanes?
- They contain covalent bonds
- They contain hydrogen bonds
- The contain induced dipole-dipole interactions
- They contain london forces
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Question 13 of 20

13. Question
Describe the solubility of alcohols in water.
- Not soluble in water
- Only smaller chained alcohols are soluble in water
- Alcohols are soluble in water
- Solubility depends on the type of alcohol
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Question 14 of 20

14. Question
Describe the relationship between solubility of alcohols and chain length.
- There is no relationship between solubility of alcohols and chain length
- As the chain length increases, the solubility increases
- Solubility stays the same as the chain length increases
- As the chain length increases, the solubility decreases
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Question 15 of 20

15. Question
- Butanol
- Butanal
- Ethanol
- Propanol
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Question 16 of 20

16. Question
- Butan-2-ol
- Propanol
- Butan-4-ol
- Propan-2-ol
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Question 17 of 20

17. Question
- Pentan-2-ol
- Butan-2-ol
- Pentanol
- Pentan-4-ol
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Question 18 of 20

18. Question
- 2-methylpropanol
- 2-methylpropan-2-ol
- Propan-2-ol
- Methylpropan-2-ol
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Question 19 of 20

19. Question
- Primary
- Tertiary
- Secondary
- Quaternary
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Question 20 of 20

20. Question
- Tertiary
- Primary
- Secondary
- Quaternary
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