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CHEMISTRY ALKANE

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

Give the general formula for alkane

a)

CnH2n

b)

CnH2n+2

c)

C2H2n+3

d)

CnH2n+4

2.

Sugar is considered as

a)

organic carbon compound

b)

inorganic carbon compound

c)

hydrocarbon

d)

alkane

3.

which of the following is an alkane

a)

C4H4

b)

C2H6

c)

C3H8

d)

C5H10

4.

Hydrocarbon is a compound that

(a)  

5.

Name the compound above

a)

Butane

b)

Methane

c)

Propane

d)

Nonane

6.

Propane contains how many carbon atoms?

a)

3

b)

5

c)

6

d)

7

7.

Looking at the chemical formulae of these compounds, which is an alkane?

a)

C3H8

b)

C2H4

c)

C5H10

d)

C4H8

8.

When hydrocarbons like the alkanes burn in plenty of air, what type of reaction takes place?

a)

Complete combustion

b)

Incomplete combustion

c)

Thermal decomposition

9.

Alkanes are saturated hydrocarbons. What does this mean?

a)

There are some C=C double bonds present in the molecule

b)

All C atoms are bonded by single covalent bonds

c)

They are very reactive

10.

Why is methane and butane have different boiling point?

a)

They have different amount of carbon atom

b)

The molecular bond

c)

Methane molecule is smaller than butane