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GCSE organic intro

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

A hydrocarbon is...

a)

only found in oil

b)

a molecule containing the atoms carbon and hydrogen

c)

flammable

d)

contains only carbon and hydrogen

2.

Alkanes are

a)

saturated

b)

have the general formula CnH2n+2

c)

A homologous series

d)

all of the above

3.

Which statement is true about Alkanes?

a)

related to cycloalkanes

b)

flammable

c)

All end in -ane

d)

Only used to power cars

4.

identify the following molecule

a)

septane

b)

octane

c)

heptane

d)

methylhexane

5.

Carbon can form 4 covalent bonds because

a)

It has 6 electrons

b)

It is in group 4

c)

it loses 4 electrons

d)

when a pair of electrons is shared between to atoms

6.

A homologous series is a family of molecules which

a)

have the same general formula

b)

the same physical properties

c)

the same chemical properties

d)

all of the above

7.

which statement is untrue

a)

Alkanes have the same chemical properties and trend in physical properties

b)

The cycloalkanes are a homologous series

c)

In fractional distillation the boiling point of fractions increases up the column

d)

In fractional distillation the viscosity increases down the column

8.

when burnt hydrocarbons can produce

a)

carbon dioxide

b)

carbon monoxide

c)

carbon

d)

water

e)

all of the above

9.

which statement is untrue

a)

alkenes are found in crude oil

b)

alkanes can be made by cracking

c)

alkenes can be made by cracking

d)

alkenes are unsaturated

10.

Which one is the odd one out

a)

A

b)

B

c)

C

d)

D