Higher Chemistry - Unit 2 - carbon, alcohols and carboxylic

Which of the following is not true about pentene?

• It is an unsaturated hydrocarbon

• It is a saturated hydrocarbon

• It under goes addition reactions

• Iy contains a carbon to carbon double bond

Which of the following will quickly decolourise bromine solution?

• Pentane

• Cyclopentane

• Pentene

• Pentanol

Which of the following is incorrect?

• Isomers are compounds with the same general formula but different structural formulae

• Isomers are compounds with the same molecular formula but different structural formulae

• Isomers may belong to different homologous series

• Isomers usually have different physical properties

Which of the following is not an isomer of butan-1-ol?

• butan-2-ol

• methylpropan-2-ol

• butanal

Which of the following has the highest boiling point?

• octane

• hexane

• butane

• ethane

Which of the following is most soluble in water?

• ethane

• ethene

• ethanol

• ethanal

Which functional group is found in the alcohols?

• Carbonyl

• Carboxyl

• Hydroxyl

• Carboxylate

The shortenend structural formula of an alcohol is

CH₃CH₂CH₂CH(OH)CH₂CH₃. Name the alcohol.

• Hexan-4-ol

• Hexan-3-ol

• Hexan-2-ol

• Hexan-1-ol

What is the molecular formula for 3,3-dimethylpentan-2-ol ?

• C₇H₁₆O

• C₇H₁₈O

• C₆H₁₄O

• C₆H₁₆O

To which class of alcohol does butan-2-ol belong?

• Primary

• Secondary

• Tertiary