Organic Chemistry

Question 1

Is alkanes saturated or unsaturated?

Answer 1

Saturated

Question 2

Which hydrocarbon undergoes complete combustion?

Answer 2

Alkane

Question 3

Which hydrocarbon undergoes incomplete combustion?

Answer 3

Alkene

Question 4

Functional group of carboxylic acids

Answer 4

COOH

Question 5

Displayed formula of carboxylic acid

Answer 5

C = O
|
O-H

Question 6

Functional group of alkene

Answer 6

C=C

Question 7

Functional group of alcohol

Answer 7

OH

Question 8

Formula for alkane

Answer 8

CnH2n+2

Question 9

Formula for alcohols

Answer 9

CnH2n+1OH

Question 10

What is a diol?

Answer 10

An alcohol group with OH at both ends

Question 11

Sequence of alkenes

Answer 11

EPBPe

Question 12

Sequence of alcohols

Answer 12

MEPBPe

Question 13

Sequence of carboxylic acids

Answer 13

MEPB

Question 14

Sequence of alkanes

Answer 14

MEPB

Question 15

Formula for carboxylic acid

Answer 15

CnH2n+1COOH
N MEANS CARBON -1 BECAUSE OF FUNCTIONAL GROUP

Question 16

What hydrocarbon forms addition polymers

Answer 16

Alkenes eg poly(propene)

Question 17

What 2 monomers form a condensation polymer?

Answer 17

Diol and dicarboxylic acid group

Question 18

How do you produce esters?

Answer 18

React alcohol with carboxylic acid

Question 19

Esters uses

Answer 19

Perfumes, food flavouring and adhesives

Question 20

Carboxylic acid salts ending

Answer 20

-anoate (magnesium ethanoate).

Question 21

Potassium dichromate colour change

Answer 21

Orange to green

Question 22

Conditions for hydrogenation

Answer 22

Alkene to alkane
60°c with nickel catalyst

Question 23

Conditions for esterification

Answer 23

Carboxylic acid and alcohol with sulphuric acid catalyst

Question 24

Ester functional group

Answer 24

COO

Question 25

Conditions for alkene to alcohol

Answer 25

Alkene + steam -> alcohol 300°c with 60-70Pa and a phosphoric acid catalyst

Question 26

Product naming of alkene + halogen reaction

Answer 26

Di + bromo/chloro/iodo + alkene but ane ending

Question 27

What are the two ways of making alcohols

Answer 27

Steam + alkene or fermentation

Question 28

Conditions for fermentation for alcohols

Answer 28

37°c and NO OXYGEN

Question 29

Equation for fermentation for alcohols

Answer 29

Sugar (react with yeast) = ethanol + CO2

Question 30

Properties of alcohols

Answer 30

Flammable, soluble in water and poisonois

Question 31

Properties of hydrocarbons

Answer 31

Shorter chain = less viscous, lower melting point (more volatile) and more flammable

Question 32

Positives and negatives of fermentation over hydration of ethene to make alcohols

Answer 32

Renewable, less energy BUT Slower, batch process and impure product

Question 33

Negatives of hydration of ethene to make alcohols

Answer 33

Ethene from crude oil, not renewable, more energy

Question 34

Positives of hydration of ethene to make alcohols

Answer 34

Faster, continuous process and pure product

Question 35

Examples of natural polymers

Answer 35

Cellulose, DNA, proteins and starch

Question 36

What does diol monomers lose in condensation polymerisation?

Answer 36

H molecules at both ends

Question 37

What does dicarboxylic acid monomers lose in condensation polymerisation

Answer 37

OH molecules at both ends

Question 38

What is an amino acid polymer called?

Answer 38

Polypeptide

Question 39

What is a polypeptide made of

Answer 39

amino acid group and carboxylic acid group