C4.1 Acids and Bases Quiz

What is the pH range of the pH scale?

• 0 to 14

• 3 to 12

• 1 to 10

• 5 to 15

What is the pH of pure water?

• 9

• 7

• 2

• 12

Which substance has a pH of around 9?

• Acid in the stomach

• Bleach

• Acid rain

• Washing up liquid

What is the benefit of using a pH probe compared to an indicator?

• Less expensive

• More colorful

• More accurate and precise

• Easier to use

How do we define an acid?

• pH greater than 7

• Forms aqueous solutions with a pH of less than 7

• Releases hydroxide ions in water

• Forms neutral solutions

What is the result of a neutralization reaction between an acid and a base?

• Oil and vinegar

• Salt and water

• Acid and base

• Gas and solid

What are some common acids?

• Sodium hydroxide, Calcium carbonate, Hydrochloric acid

• Sulfuric acid, Nitric acid, Hydroxides

• Hydrochloric acid, Sulfuric acid, Nitric acid

• Calcium carbonate, Sodium hydroxide, Nitric acid

What are alkalis defined as?

• Substance that forms neutral solutions

• Subgroup of acids

• Substance with a pH less than 7

• Subgroup of bases soluble in water