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This quiz contains 11 questions from a mix of 1 subtopics.

What is the balanced equation for the oxidation of ethanol to ethanal using an oxidising agent, [O]?

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What is the balanced equation for the oxidation of ethanol to ethanoic acid using an oxidising agent, [O]?

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What is the balanced equation for the complete combustion of ethanol?

C2H5OH + 5⁄2O2 ➔ 2CO2 + 3H2O

C2H5OH + 3O2 ➔ 2CO2 + 3H2O

C2H6OH + 3O2 ➔ 2CO2 + 3H2O

C2H5OH + 2O2 ➔ 2CO + 3H2O

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What colour change is observed when alcohols are oxidised using acidified potassium dichromate(VI) solution?

green to orange

blue to orange

orange to green

orange to blue

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What is the result of oxidising a secondary alcohol using acidified potassium dichromate(VI)?

aldehyde

ketone

no reaction

carboxylic acid

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How do tertiary alcohols react with acidified potassium dichromate(VI)?

do not oxidise

oxidise to aldehydes

oxidise to carboxylic acids

oxidise to ketones

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What is the difference in structure between aldehydes and ketones?

aldehydes have one alkyl group and one hydrogen atom attached to the carbonyl carbon, while ketones have two alkyl groups

aldehydes have a carboxyl group, while ketones have a carbonyl group

aldehydes have a carbonyl group, while ketones have a carboxyl group

aldehydes have two alkyl groups attached to the carbonyl carbon, while ketones have one alkyl group and one hydrogen atom

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Which reagent can be used to distinguish between aldehydes and ketones by forming a silver mirror with aldehydes?

Fehling's solution

acidified potassium dichromate(VI)

Tollens' reagent

sodium halide

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What is the product of the dehydration of alcohols using concentrated sulfuric acid?

alkane

halogenoalkane

ester

alkene

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Which of the following statements about the oxidation of alcohols using acidified potassium dichromate(VI) is true?

the dichromate(VI) ions are reduced to chromium(II) ions

the dichromate(VI) ions are reduced to chromium(III) ions

the dichromate(VI) ions are oxidised to chromium(VII) ions

the dichromate(VI) ions are not involved in the redox reaction

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Describe the steps involved in the mechanism of the dehydration of alcohols to form alkenes.

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