The Products of Combustion and Pollution

What is the process called that separates crude oil into fractions containing similar sized hydrocarbon molecules?

• Fractional distillation

• Cracking

• Polymerization

• Hydrogenation

In fractional distillation, where is the column hot and where is it cool?

• The top is cool, and the bottom is hot.

• The top is hot, and the bottom is cool.

• The middle is hot, and both ends are cool.

• The entire column is uniformly hot.

What are hydrocarbons made up of?

• Hydrocarbons are made up of hydrogen and carbon atoms.

• Hydrocarbons are made up of oxygen and nitrogen atoms.

• Hydrocarbons are made up of sulfur and phosphorus atoms.

• Hydrocarbons are made up of helium and neon atoms.

Which type of hydrocarbons are saturated with the general formula CnH2n+2?

• Saturated hydrocarbons

• Unsaturated hydrocarbons

• Aromatic hydrocarbons

• Cyclic hydrocarbons

What is the test for a C=C bond in alkenes?

• Bromine water test

• Litmus paper test

• Flame test

• Limewater test

Cracking in terms of hydrocarbons is:

• a process of breaking down large hydrocarbons into smaller ones

• a method of synthesizing new hydrocarbons

• a technique for purifying hydrocarbons

• a way to combine small hydrocarbons into larger ones

Complete combustion of butane gives which two products?

• carbon dioxide and water

• carbon monoxide and water

• carbon dioxide and hydrogen

• carbon monoxide and hydrogen

What is the mnemonic to remember the first four alkanes?

• Monkeys Eat Peanut Butter

• Cats Nap Quietly

• Dogs Bark Loudly

• Fish Swim Fast

How does the apparatus show that water is produced? The blue cobalt chloride paper turns pink (and see water droplets).

• The apparatus shows that water is produced by indicating a color change in the blue cobalt chloride paper, which turns pink, and by the presence of water droplets.

• The apparatus shows that water is produced by the temperature change in the environment.

• The apparatus shows that water is produced by the sound it makes when water is formed.

• The apparatus shows that water is produced by the smell of water in the air.

How does the apparatus show that carbon dioxide is produced?

• The limewater turns cloudy.

• The limewater remains clear.

• The limewater turns blue.

• The limewater turns red.