C14 quiz

• Chemistry
• Secondary Education

C14 quiz

Methane has the chemical formula CH4. State how many bonds it contains.

1. 1
2. 2
3. 3
4. 4

What is the chemical
formula of this
compound?

1. C2H4
2. C2H5OH
3. CH4
4. CH2

What is the
name of this
organic compound?

1. methanol
2. ethanol
3. ethane
4. propane

What is the name ending of an organic compound that contains an O–H group?

When methane burns in air, ______ ; and water are produced.

What is the definition of a fuel?

1. Gasoline that is used in internal combustion engines
2. A substance that can be burned to produce energy for cooking or vehicles
3. Any organic compound that undergoes chemical reactions
4. Wood that is burned for cooking

Petroleum can be separated by fractional distillation because the fractions have different ______ ; points.

What organic compounds are produced during fractional distillation?

1. Acids, such as hydrochloric acid and sulfuric acid
2. Alkanes, alkenes and alcohols
3. Fuels, such as gasoline and diesel oil
4. Only methane, because it is a hydrocarbon

State the name of the fraction used for making chemicals.

What do we use the majority of petroleum products for?

1. Fuel
2. Machinery
3. Cooking foods
4. Cars and trucks

Which alkane is not a gas at room temperature?

1. hexane
2. ethane
3. butane
4. methane

Hexane is a liquid at room temperature. Hexane has a higher number of carbon atoms in its chain than methane, ethane and butane; this means that its boiling point is higher too. 

Complete the following sentence: Alkanes are generally unreactive because their molecules contain atoms with ______ ;outer electron shells.

What type of bonding is present in an alkane molecule?

1. Ionic
2. Covalent
3. Weak
4. Hydrogen

Why are alkanes generally unreactive?

1. They have strong covalent bonds.
2. They have ionic bonds.
3. They have special bonds that are unknown.
4. They are not organic compounds.

Why is ethanol suitable for use in perfumes?

1. Because it burns readily in oxygen
2. Because it is a heavy molecule
3. Because it is volatile
4. Because it has a high boiling point

Ethanol can be consumed and is volatile (it evaporates easily) so it is often used in products that come into close contact with the human body, as it will not cause any bodily harm.

Complete the following sentence:

Ethanol can be used as a ______ ;because many organic compounds can be dissolved in it, as well as compounds that would normally dissolve in water.

State the name of the gas produced when ethanol burns in air.

What are the physical properties of ethanol?

1. It is a solid at room temperature and melts at 78°C.
2. It is a liquid at room temperature and has a boiling point of 78 °C.
3. It is a liquid at room temperature and does not boil.
4. It is a gas at room temperature and condenses at 78 °C.

What is the general name for a single unit needed to make a polymer?

1. Monomer
2. Molecule
3. Alkene
4. Alkane

State the type of polymerisation ethene undergoes to produce polyethene