A homologous series is a series of compounds which have:

Differ by CH 2 in molecular formulae from neighbouring compounds.

Show gradual variation in physical properties.

Have similar chemical properties.

Select the correct statements.

Fuel oil is a larger molecule than petrol.

Fuel oil is more viscous than petrol.

Fuel oil is more volatile than petrol.

Fuel oil has a lower boiling point than petrol.

Incomplete combustion occurs when:

There’s not enough oxygen present.

There’s not enough hydrogen present.

Carbon monoxide is dangerous because it:

Binds to haemoglobin in the place of oxygen.

Acid rain is caused by:

Sulphur impurities in fuel reacting with oxygen and releasing sulphur dioxide which dissolves in rainwater.

Nitrogen and oxygen in the air reacting.

Are present in the atmosphere in large proportions.

React together in car engines due to the high temperatures.

Are both ionically bonded structures.

Cracking is helpful because:

Smaller chain hydrocarbons are more useful.

Larger chain alkanes can be cracked to form smaller chain alkanes.

Larger chain alkanes are more viscous.

Smaller alkanes have lower boiling points.

Select the correct equation.

B r 2 + C 2 H 4 → C 2 H 4 B r 2 Br_2\ +C_2H_4\ \rightarrow\ C_2H_4Br_2 B r 2 + C 2 H 4 → C 2 H 4 B r 2

B r + C 2 H 4 → C 2 H 4 B r Br\ +C_2H_4\ \rightarrow\ C_2H_4Br B r + C 2 H 4 → C 2 H 4 B r

2 B r 2 + C 2 H 4 → 2 H B r + C 2 H 2 B r 2 2Br_2\ +C_2H_4\ \rightarrow\ 2HBr\ +C_2H_2Br_2 2 B r 2 + C 2 H 4 → 2 H B r + C 2 H 2 B r 2

2 B r 2 + C 2 H 4 → C 2 H 4 B r 2 + 2 H B r 2Br_2\ +C_2H_4\ \rightarrow\ C_2H_4Br_2\ +2HBr 2 B r 2 + C 2 H 4 → C 2 H 4 B r 2 + 2 H B r

Select the correct equation.

C 3 H 6 + B r 2 → C 3 H 6 B r 2 C_3H_6\ +Br_2\ \rightarrow\ C_3H_6Br_2 C 3 H 6 + B r 2 → C 3 H 6 B r 2

C 3 H 6 + B r 2 → C 3 H 4 B r 2 + H 2 C_3H_6\ +Br_2\ \rightarrow\ C_3H_4Br_2\ +H_2 C 3 H 6 + B r 2 → C 3 H 4 B r 2 + H 2

C 3 H 6 + B r 2 → C 3 H 4 B r 2 + 2 H B r C_3H_6\ +Br_2\ \rightarrow\ C_3H_4Br_2\ +2HBr C 3 H 6 + B r 2 → C 3 H 4 B r 2 + 2 H B r

C 3 H 6 + 2 B r 2 → C 3 H 6 B r 2 + B r 2 C_3H_6\ +2Br_2\ \rightarrow\ C_3H_6Br_2\ +Br_2 C 3 H 6 + 2 B r 2 → C 3 H 6 B r 2 + B r 2

Stogs GCSE Interleaving Crude Oil L

Quiz

•

Chemistry

•

8th - 10th Grade

•

Practice Problem

•

Medium

Stephanie Difford

Used 8+ times

FREE Resource

30 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A hydrocarbon is:

A compound made up of oxygen and hydrogen only.

A compound made up of carbon and hydrogen only

A compound made up of hydrogen and nitrogen only.

A compound made up of carbon and oxygen only.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Crude oil:

Is a hydrocarbon.

Is a compound of a hydrocarbon.

Is a mixture of hydrocarbons.

Is nothing to do with hydrocarbons.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Crude oil is:

A renewable resource

A finite resource

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An isomer...

... has the same number of bonds.

... has the same number of atoms, but different elements.

... has the same number and type of atoms, but a different arrangement.

... has the same arrangement of atoms, but different numbers.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the general formula of the alkanes?

C_nH_2n

C_nH_2n+1

C_nH_2n+2

C_nH_2n+3

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the general formula of the alkenes?

C_nH_2n

C_nH_2n+1

C_nH_2n+2

C_nH_2n+3

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the formula of ethene?

C₂H₆

CH₆

C₂H₄

CH₄

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Stogs GCSE Interleaving Crude Oil L

30 questions

A hydrocarbon is:

Crude oil:

Crude oil is:

An isomer...

What is the general formula of the alkanes?

What is the general formula of the alkenes?

What is the formula of ethene?

What is the formula of propane?

Alkanes are ...

Alkenes are ...

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