Oxidation of alcohols 24 Flashcards

1
Q

Give the reagent for this reaction.

A

Acidified potassium dichromate (VI)

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2
Q

Give a balanced equation for this reaction. (Using distillation setup)

A
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3
Q

What is the essential condition for partial oxidation of a primary alcohol to an aldehyde?

A

Distillation setup only.

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4
Q

Write a balanced equation for this reaction. (Using reflux apparatus)

A
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5
Q

Write a balanced equation for this reaction.

A
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6
Q

What is the essential condition for the complete oxidation of a primary alcohol to a carboxylic acid? Also, state the colour change observed.

A

Heating under reflux. Orange to green colour change observed.

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7
Q

Name the reagent for this reaction.

A

Acidified potassium dichromate (VI)

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8
Q

State the essential condition for the oxidation of secondary alcohols, and state the colour change observed.

A

Heating under reflux in order to increase reaction rate. colour changes from orange to green.

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9
Q

. Give a balanced equation of this reaction.

A

No reaction.

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10
Q

What are the essential conditions for oxidising a tertiary alcohol?

A

No essential conditions exist, as tertiary alcohols cannot be oxidised by adding acidified potassium dichromate- although they can be oxidised by burning.

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11
Q

Haloalkanes form alcohols in which two ways?

A
  • aqueous alkali reagent
  • water reagent
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12
Q

Write an equation for the substitution reaction of 1-chloroethane with aqueous potassium hydroxide.

A
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13
Q

What are the conditions for the reaction of a haloalkane and alkali?

A
  • aqueous solvent
  • heat under reflux
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14
Q

what’s a nucleophile?

A

Electron pair donor

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15
Q

Write a mechanism for 1-chloroethane and potassium hydroxide

A
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16
Q

general equation for alcohol and sodium halide

A
17
Q

Alcohol to Haloalkane reagent and catalyst

A

Sodium halide and acid/H+

18
Q

What type of reaction takes place when an alcohol changes to a Haloalkane?

A

Substitution reaction

19
Q

General equation for alcohol to Alkene (with conditions)

A
20
Q

Reagent and conditions required for alcohol to alkene

A

Acid/H+ catalyst and heat

21
Q

Equation for combustion of alcohol (C2H5OH +3O2)

A