Unit Test on Acid and Bases

A solution has a pH of 10. This solution can be described as ______.

• neutral
• an acid
• a base
• a salt

An acid and a base of equal strength are combined and the result is a salt and water. This is an example of ____________.

• a neutralization reaction
• a salt reaction
• a nuclear reaction
• an acid reaction

Joanne dips some neutral litmus paper into a substance and it turns blue. The substance has a slippery feel and tastes chalky. This substance is most likely __________.

• an acid
• a base
• neutral
• a compound

Matthew is testing a substance. It tastes sour, is corrosive, and turns neutral litmus paper red.  What would be the most likely pH of this substance?

• 7
• 10
• 4
• 8

Purple cauliflower flowers turn red when exposed to an acid. This is because cauliflower has a natural _______ present in it.

• acid
• base
• indicator
• neutralization

A substance has a pH greater than water (pH of 7) but less than bleach (ph of 13).   That means this substance is _______.

• an acid
• a base
• neutral
• a salt

A solution is an electrolyte, has a neutral pH, and when the water is evaporated leaves behind a solid substance with a crystal structure. What is this substance most likely?

• an acidic solution
• a basic solution
• a heterogenous mixture
• a salt water solution

Red litmus paper will turn blue when dipped into ____________.

• an acidic solution
• a basic solution
• a neutral solution
• a salt solution

Which of the following is NOT the result of a neutralization reaction?

• a salt
• water
• a base
• a neutral substance

Which of the following methods of reading pH gives you the most precise reading of a solution's pH?

• an indicator
• pH paper
• neutral litmus paper
• a pH meter