Hydrocarbons And Fuels

Question 1

Cyclobutane belongs to a family of hydrocarbons

Name This family of hydrocarbon

Answer 1

Cycloalkanes

Question 2

Cyclobutane belongs to a family of hydrocarbons

What’s the molecular formula for cyclobutane

Answer 2

C4H8

Question 3

Cyclobutane belongs to a family of hydrocarbons

What’s the first never of this family

Answer 3

CycloPropane

Question 4

What terminal is used to describe any family of hydrocarbons which have the same formula and similar chemical properties

Answer 4

Homologous series

Question 5

State the general formula for the family of hydrocarbons which contains cyclobutane

Answer 5

CnH2n

Question 6

Cyclobutane is described as a saturated hydrocarbons

What is ment by the term saturated

Answer 6

Dosent have a carbon to carbon double bond

Question 7

What’s got the same molecular formula as cyclobutane

Answer 7

Butene

Question 8

What is ment by the term isomer

Answer 8

Compounds with the same molecular formulae but DIFFRENT structural formulae

Question 9

Name the two families of hydrocarbons with the same general formula each other

Answer 9

Alkene and cycloalkanes

Question 10

A hydrocarbon molecule has molecular formula of C5H10

To which two families could this molecule belong

Answer 10

Alkene and cycloalkane

Question 11

A hydrocarbon molecule has molecular formula of C5H10

Describe a chemical test including the results which would confirm family C5H10 belongs to

Answer 11

If C5H10 is an alkene it will decolourise bromine solutions. This happens when a alkene and bromine solution get shaken together a addition reaction takes place which leads to bromine getting decolourise. So, if C5H10 is a cycloalkane and saturated the reaction will not take place and not decolourise bromine.

Question 12

Why are alcohols used as fuels

Answer 12

Because they are highly flammable and burn with a very clean flame

Question 13

What alcohols are miscible in water

Answer 13

Methanol ethanol and propanol

Question 14

What happens to the solubility of alcohols as the size of the molecule increases

Answer 14

The solubility decreases

Question 15

Why does the boiling points of alcohol increase as the size goes up

Answer 15

Because there are more bonds making the intermolecular bonds stronger and harder to break

Question 16

What is the functional group for alcohols

Answer 16

Hydroxyl

Question 17

True or false are alcohols saturated

Answer 17

True

Question 18

True or false are alcohols saturated

Answer 18

True

Question 19

What is the general formula for alcohols

Answer 19

CnH2n+1 OH

Question 20

What are household uses of carboxylate acids

Answer 20

Soaps, medicine and vinegar ( dilute solution of ethanonic acid)

Question 21

What carboxylic acids are miscbible in water

Answer 21

Methanoic, ethanoic propanoic and butanoic acid

Question 22

What is the function ground of carboxylic acids

Answer 22

Carboxyl

Question 23

Are carboxylic acid saturated or unsaturated

Answer 23

Saturated

Question 24

What is the general formula for carboxylic acid

Answer 24

CnH2n+1 COOH

Question 25

What does exothermic mean

Answer 25

A reaction process that releases energy

Question 26

What does endothermic mean

Answer 26

A reaction process that takes in energy

Question 27

What happens in combustion

Answer 27

A substance reacts with oxygen realising energy

Question 28

What is the equation to find out the quantity of heat energy being released

Answer 28

E=cm^T

Question 29

What is a homologous series

Answer 29

A compound with the same general formula and similar chemical properties

Question 30

What is a hydrocarbon

Answer 30

A compound with only hydrogen and carbon atoms

Question 31

What does it main when a compound is described as unsaturated

Answer 31

The compound contains ATLEATS a carbon to carbon double bond

Question 32

How do you test for unsaturation

Answer 32

Unsaturated compounds dicolourises bromine solution quickly

Question 33

What are isomers

Answer 33

Same molecular formula but a Different structural formulae

Question 34

Are alkanes saturated or unsaturated

Answer 34

Saturated

Question 35

What is the general formula for alkanes

Answer 35

CnH2n+2

Question 36

True or false are alkanes insoluble in water

Answer 36

True

Question 37

How are cycloalkes used

Answer 37

Solvents and fuels

Question 38

How are alkenes used

Answer 38

To make polymers and alcohols

Question 39

What functional group does alkenes have

Answer 39

Carbon to carbon double bond

Question 40

What are the three types of addition reactions

Answer 40

Hydration Hydrogenation Halogenation

Question 41

What is added in a halogenation

Answer 41

Halogens Normally use bromine

Question 42

What is added during a hydration reaction

Answer 42

Water

Question 43

What does acidic solution have a higher concentration offfff

Answer 43

Hydrogen ions (H+) and lower hydroxide ions ( OH-)