Welcome to the Quiz!

This quiz contains 8 questions from a mix of 1 subtopics.

What happens when Tollens' reagent is added to 2-methylbutanal?

a colourless solution forms

an orange-red precipitate forms

a blue solution forms

a silver precipitate forms

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What happens when Fehling's reagent is added to butanone

no reaction occurs

a white precipitate forms

an orange-red precipitate forms

a silver precipitate forms

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1

What colour change takes place when acidified potassium dichromate, K2Cr2O7, is heated with a primary alcohol?

orange to green

green to orange

colourless to green

orange to colourless

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What happens when excess bromine water is added to cyclohexene?

solution turns orange

no reaction occurs

orange precipitate forms

solution turns colourless

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1

The oxidation of alcohol results in the formation of a ketone.

secondary

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1

Primary alcohols can be to form or carboxlic acids.

oxidised
aldehydes

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2

Which organic compounds will form green solutions when refluxed with excess acidified potassium dichromate?

(Select all that apply).

CH3CH2OH

(CH3)2O

CH3CH2COOH

CH3CH2CHO

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2

Which chemical tests will give positive results with the compound but-2-enoic acid, CH3CH=CHCOOH?

(Select all that apply).

Tollens' reagent

bromine water

potassium dichromate

sodium carbonate

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2