C7-Organic Chemistry

Question 1

What is crude oil?

Answer 1

Made from Plankton buried underwater and compressed over for a long time

Question 2

What is crude oil (molecules)

Answer 2

A hydrocarbon

Question 3

What are hydrocarbons consisted of

Answer 3

Carbon and hydrogens

Question 4

What are two types of hydrocarbons

Answer 4

Alkenes and alkanes

Question 5

What are alkanes

Answer 5

Made of single-covalently bonded CARBON atoms surrounded by Hydrogen atoms

Question 6

What are alkanes called

Answer 6

Saturated

Question 7

What is the general formula for ALKANES

Answer 7

C^n H^2n+2

Question 8

Meth
Eth
Prop
But

Numbers of carbons

Answer 8

Meth-1
Eth-2
Prop-3
But-4

Question 9

Hydrocarbons in crude oil…….. (fractional)

Answer 9

Must be separated into fractions before they can be used

Question 10

Longer alkanes have…

Answer 10

Higher boiling points due to more heat needed to overcome intermolecular forces

Question 11

Complete combustion formula for fuel is?

Answer 11

Fuel + Oxygen ——> Carbon Dioxide + Water

Question 12

Longer alkanes have a higher….(v)

Answer 12

Viscosity

Question 13

What does viscosity mean

Answer 13

A measure of a fluids resistance to flow

Question 14

Shorter alkanes are more…..

Answer 14

Flammable

Question 15

What can hydrocarbons make

Answer 15

Solvents,lubricants,detergents and polymers

Question 16

What are polymers more commonly used from

Answer 16

Made from Alkenes

(Used to make plastic)

Question 17

What is an Alkene

Answer 17

A hydrocarbon with Atleast one DOUBLE COVALENT BOND

Question 18

Are alkenes unsaturated or saturated

Answer 18

Unsaturated

Question 19

What’s the general formula for alkenes?

Answer 19

C^n H^2n

Question 20

How can you test for Alkenes

Answer 20

Will turn Bromine Water from ORANGE to COLOURLESS if in solution

Question 21

Why does Bromine water change colour (practical)

Answer 21

Due to the bromine atoms bonding to the alkene

by breaking the double bond

This molecule has been saturated

Question 22

What does a water and alkene make

Answer 22

An Alcohol

Question 23

What can we use cracking for

Answer 23

Break longer alkanes into shorter ALKANE with a ALKENE to meet these demands

Question 24

What is an Alcohol

Answer 24

An organic molecule with an -OH functional group

Question 25

What is the complete combustion formula with alcohol

Answer 25

Alcohol + Oxygen ——>Carbon Dioxide+ Water

Question 26

What is the formula for incomplete combustion with alcohol

Answer 26

Alcohol + Oxygen ——>carbon monoxide + water

Question 27

What does an alcohol that has been oxidised make

(hasn’t used combustion)

Answer 27

Carboxylic Acid (-COOH)

Question 28

What are polymers

Answer 28

Are long chained organic molecules of repeating sections made from MONOMERS

Question 29

What are monomers joined together by

Answer 29

Additional polymerisation

Question 30

What must monomers contain

Answer 30

A double bond

Question 31

What is the formula containing carboxylic acid called

Answer 31

Carboxylic acid + Alcohol ——> Ester + Water

Question 32

Ethanoic acid + Ethanol ——>?

Answer 32

Ethyl Ethanoate

Question 33

Amino acids contain…..(group)

Answer 33

An AMINO group (-NH^2) and a Carboxyl group (-COOH)

Question 34

What does polymerised amino acids make

Answer 34

Polypeptides

Proteins

Question 35

What is DNA

Answer 35

A two stranded polymer made from monomers called NUCLEOTIDES

Question 36

Starch is…..

Answer 36

A polymer of glucose

Question 37

Cellluose is….

Answer 37

A polymer of BETA-GLUCOSE