IGCSE Alkenes and Alkanes

What is the general formula for saturated hydrocarbons?

• C_nH_2n
• C_nH_n+1
• C_nH_2n+1
• C_nH_2n+2

How many structural isomers does C₅H₁₂ have?

• 2

• 3

• 5

• 9

How many carbon atoms are in propane

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-1

How many hydrogen atoms are in butane

• 4
• 6
• 8
• 10

If an alkane has 20 carbon atoms, how many hydrogen atoms will it have?

• 20
• 22
• 40
• 42

Alkanes are known as saturated hydrocarbons because they contain only carbon-hydrogen single bonds.

• True
• False

The boiling points and viscosity of alkane molecules increase as their molecular sizes increase.

• True
• False

Name this alkane

• Methane
• Ethane
• Propane
• Butane

Tags

NGSS.MS-PS1-1

Which formula represents an unsaturated hydrocarbon?

• A
• B
• C
• D

Hydrocarbons are compounds that contain

• Carbon, only
• Carbon and Hydrogen, only
• Carbon, Oxygen, and Hydrogen, only
• Carbon, Oxygen, Hydrogen, and Nitrogen, only

Tags

NGSS.HS-LS1-6