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GCSE AQA AI C9.4 Cracking and Alkenes (Cognito)

Authored by David Brooks

Chemistry

9th Grade

Used 3+ times

GCSE AQA AI C9.4 Cracking and Alkenes (Cognito)
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12 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is crude oil primarily made up of?

Pure alkanes

Saturated alcohols

A mixture of hydrocarbons

Carbon dioxide and water

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What process is used to separate crude oil into its component hydrocarbons?

Cracking

Filtration

Electrolysis

Fractional distillation

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of hydrocarbon makes the best fuels?

Long-chain hydrocarbons

Short-chain hydrocarbons

Alkenes only

Aromatic hydrocarbons

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main purpose of cracking hydrocarbons?

To make crude oil more viscous

To remove impurities

To produce shorter, more useful hydrocarbons

To separate oil from water

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What type of reaction is cracking?

Polymerization

Combustion

Neutralization

Thermal decomposition

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In catalytic cracking, what catalyst is commonly used?

Copper sulfate

Iron oxide

Aluminium oxide

Zinc carbonate

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is required for steam cracking?

Cold temperatures and high pressure

Water and low heat

Mixing hydrocarbon vapour with steam and heating to a high temperature

Adding a metal catalyst at room temperature

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