Organic chemistry

Organic compounds always contain:

• 1 Sulphur
• 2 Carbon
• 3 Oxygen
• 4 Nitrogen

Which of these is a functional group of alcohols?

• 1 -CHO
• 2 -NH2
• 3 -OH
• 4 -COOH

The functional group of carboxylic acids is:

• 1 -COOH
• 2 -CO-
• 3 -CHO
• 4 -OH

Compounds with the same formula but different structures are called:

• 1 Isotopes
• 2 Polymers
• 3 Isomers
• 4 Allotropes

Ethanol has the formula:

• 1 C2H6
• 2 CH3OH
• 3 CH3COOH
• 4 C2H5OH

The first member of the alkane family is:

• 1 Methane
• 2 Propane
• 3 Ethane
• 4 Butane

Petroleum is a mixture of:

• 1 Salts
• 2 Metals
• 3 Hydrocarbons
• 4 Acids

The formula of ethane is:

• 1 C2H2
• 2 CH4
• 3 C2H4
• 4 C2H6

Which is an alcohol?

• 1 CH3COCH3
• 2 CH3COOH
• 3 CH3OH
• 4 CH3CHO