Quiz on Chemical Analysis

What is chemical analysis also known as?

• Organic chemistry

• Analytical chemistry

• Physical chemistry

• Inorganic chemistry

What does a pure substance contain?

• Multiple types of compounds

• Only one type of compound or element

• Water and salt

• Any mixture of elements

Which method is NOT mentioned as a way to separate substances?

• Distillation

• Filtration

• Evaporation

• Paper chromatography

What is the boiling point of pure water?

• 90 degrees Celsius

• 100 degrees Celsius

• 110 degrees Celsius

• 80 degrees Celsius

What happens to the boiling point of an impure substance?

• It decreases

• It increases

• It remains the same

• It becomes unpredictable

What is a formulation?

• A type of pure substance

• A type of chemical reaction

• A mixture prepared using a specific formula

• A method of separating liquids

Which of the following is NOT an example of a formulation?

• Medicine

• Saltwater

• Paint

• Cleaning agents

What is the melting point of saltwater compared to pure water?

• Higher than pure water

• Lower than pure water

• The same as pure water

• Unmeasurable

Why are impurities significant in a substance?

• They have no effect on the substance

• They change the physical properties

• They make substances more expensive

• They only affect the color

What do you do after finding the right combination for a formulation?

• Forget the formula

• Use it repeatedly

• Change the proportions

• Sell it immediately