Homologous Series

Question 1

State the definition of a homogenous series

Answer 1

A homologous series is a family of compounds with the same general formula and a similar chemical properties

Question 2

Draw full and structural formula

Question 3

Draw structural formula for propane

Answer 3

CH3CH2CH3

Question 4

What is meant by the term saturated

Answer 4

A compound that contains carbon carbon single bonds only

Question 5

What is meant by the term unsaturated?

Answer 5

 compound that contains at least one carbon to carbon double bonds

Question 6

Draw a saturated compound

Answer 6

Amy hydrocarbon with C – C single bonds

Question 7

Draw an unsaturated compound

Answer 7

Any hydrocarbon with at least one carbon to carbon double bond

Question 8

State the elements found in a hydrocarbon

Answer 8

Hydrogen and carbon only

Question 9

Describe the test for saturation

Answer 9

Unsaturated compounds will decolourise bromine water

Question 10

State what is meant by the term isomer

Answer 10

Isomers are compounds with the same molecular formula but different structural formulas

Question 11

Draw an isomer of but-1-ene

Question 12

Name and draw straight and branched alkanes upto C8

Question 13

Draw cyclopropane

Question 14

Draw cyclohexane

Question 15

State the properties of an alkane

Answer 15

Alkane - saturated hydrocarbons, insoluble in water and commonly used as fuels

Question 16

State the properties of an alkene

Answer 16

Alkene - unsaturated hydrocarbons, insoluble in water and commonly used to make polymers and alcohols via addition reactions

Question 17

State the properties of a cycloalkane

Answer 17

Cycloalkane - saturated, cyclic hydrocarbon, insoluble in water, commonly used as fuels and solvents

Question 18

State the general formula for an alkane

Answer 18

Alkanes - CnH2n+2

Question 19

State the general formula for an alkene

Answer 19

Alkene - CnH2n

Question 20

State the general formula for a cycloalkane

Answer 20

Cycloalkane- CnH2n

Question 21

State what is meant by the term addition reaction

Answer 21

An addition reaction is when 2 (or more) molecules join together to form a larger one.
The reaction involves breaking a C-C double or triple bonds

Question 22

Describe a hydrogen reaction

Answer 22

Hydrogenation- reaction between an alkene and H2 forming an alkane

Question 23

Describe a halogenation reaction

Answer 23

Alkenes reacting with halogens forming dihaloalkanes

Question 24

Describe a hydration reaction

Answer 24

Hydration- reaction between an alkene and water forming an alcohol

Question 25

Know what a nickel catalyst does