Fuels and Hydrocarbons revision

Question 1

What are Hydocarbons made up from?

Answer 1

Hydrogen and Carbon

Question 2

Crude oil is a mixture of

Answer 2

Hydro carbons

Question 3

The process of separating hydrocarbons is

Answer 3

Fractional Distillation

Question 4

Gases from crude oil are used for?

Answer 4

Domestic heating and cooking

Question 5

Petrol from crude oil is used for

Answer 5

Fuels for cars

Question 6

The fuel aircrafts use is?

Answer 6

Kerosene

Question 7

The fuel some cars and trains use is?

Answer 7

Diesel

Question 8

Fuel oil is used by

Answer 8

Large ships and power stations

Question 9

The 4 ways different hyrdocarbon fractions differ from each other are?

Answer 9

. Number of carbons they contain
.boiling points
.ease of ignition
.viscosity

Question 10

Bitumen is used for?

Answer 10

Surfacing roads and roofs

Question 11

By what unit does the molecular formula change in neighbouring molecules (i.e. the next one) in a homologous series?

Answer 11

CH2

Question 12

Examples of physical properties that differ within a homologous series are

Answer 12

Boiling points and melting points.

Question 13

When hydocarbon fuels burn in oxygen what is this called?

Answer 13

Combustion

Question 14

What type of combustion occurs in a plentiful supply of oxygen?

Answer 14

Complete combustion

Question 15

What are the products of complete combustion?

Answer 15

Carbon dioxide and water

Question 16

What are the products of incomplete combustion?

Answer 16

Carbon Dioxide, Carbon monoxide, water and soot.

Question 17

What is the chemical test for carbon dioxide?

Answer 17

It turns lime water cloudy

Question 18

The homologous series most hydrocarbons in crude oil belong to is

Answer 18

Alkanes

Question 19

Give and example of an alkane

Answer 19

Methane

Question 20

Describe the temperatures in a fractioning column

Answer 20

Hot at the the bottom cold at the top