Quiz on Acids and Bases

What is the definition of an acid?

• It contains more H⁺ ions than water

• It contains more OH⁻ ions than water

• It is neutral

• It is a base

What is the definition of an alkali?

• It contains more OH⁻ ions than water

• It contains more H⁺ ions than water

• It is neutral

• It is an acid

If an acid is diluted, what happens to its pH?

• It increases to pH 7

• It decreases to pH 7

• It remains the same

• It becomes neutral

What type of solution does a non-metal oxide produce if it is soluble?

• An acidic solution

• A basic solution

• A neutral solution

• A saline solution

What type of solution does a metal oxide produce if it is soluble?

• An acidic solution

• A neutral solution

• An alkaline solution

• A saline solution

What are the products of the reaction of an alkali (metal hydroxide) and an acid?

• Salt and hydrogen

• Salt and water

• Water and carbon dioxide

• Salt and oxygen

What are the products of the reaction of a metal oxide and an acid?

• Salt and hydrogen

• Salt and water

• Water and carbon dioxide

• Salt and oxygen

What is the formula for nitric acid?

• HCl

• HNO₃

• H₂SO₄

• H₂CO₃

Name the salt made when magnesium carbonate and nitric acid react together.

• Magnesium chloride

• Magnesium nitrate

• Magnesium sulphate

• Magnesium oxide

What is a base?

• A substance that neutralizes an acid

• A substance that increases acidity

• A substance that dissolves in water

• A substance that reacts with metals