Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Alcohols > Reactions of Alcohols > Flashcards

Reactions of Alcohols Flashcards

1
Q

What are the three types of alcohol

A
  1. Primary
  2. Secondary
  3. Tertiary
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the conditions for the partial oxidation of primary alcohols?

A
  • Acidified potassium dichromate (K2Cr2O7/H2SO4)
  • heat and immediately distill off the product
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What are the conditions for the oxidation of primary alcohols?

A
  • EXCESS Acidified potassium dichromate (K2Cr2O7/H2SO4)
  • heat under reflux
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the conditions for the oxidation of aldehydes?

A
  • EXCESS Acidified potassium dichromate (K2Cr2O7/H2SO4)
  • heat under reflux
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What does the partial oxidation of a primary alcohol form?

A

An aldehyde

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What does the oxidation of a primary alcohol form?

A

Carboxylic acid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What does the oxidation of an aldehyde form?

A

Carboxylic acid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What does the oxidation of a secondary alcohol form?

A

A ketone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are the conditions for the oxidation of a secondary alcohol?

A
  • EXCESS Acidified potassium dichromate (K2Cr2O7/H2SO4)
  • heat under reflux
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Why are tertiary alcohols resistant to oxidation?

A

The carbon atom attatched to the hydroxyl (OH) group is not bonded to a hydrogen atom and so the alcohol is resistant to oxidation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What colour change occurs when primary and secondary alcohols are oxidised

A

Orange to Green

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What color change occurs when a tertiary alcohol is oxidised?

A

No colour change (it remains orange)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Explain how acidified potassium dichormate can be used to determine if an alcohol is tertiary

A

When you add acidified potassium dichromate, no reaction will occur and so no colour change will occur. The solution will remain orange.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the dehydration of alcohols also called?

A

Elimination reaction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is produced after the dehydration of alcohols?

A

Alkenes + Water

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the conditions for the dehydration of alcohols?

A
  • Heat under reflux
  • H2SO4 catalyst or H3PO4catalyst
16
Q

What does the nucleophilic substitution of alcohols form?

A

Haloalkanes and Water

17
Q

Why is nucleophillic substitution an example of a substitution reaction?

A

The OH group in the alcohol is substituted by the halogen from the hydrogen halide

18
Q

The hydrogen halide is formed in [blank]

fill in the blank

19
Q

What are the reagents that form the hydrogen halide in situ?

A

Sodium halide (e.g. NaBr)
* dilute H2SO4 sulfuric acid

20
Q

What are the conditions for nucleophilic substitution of alcohols?

A
  • NaBr
  • Dilute sulfuric acid (H2SO4
  • Heat under reflux

Alcohols (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions