Quiz on pH and Indicators

Which of the following is NOT an indicator used to determine pH?

• Universal indicator

• Phenolphthalein

• Litmus paper

• Thermometer

Which pH value indicates a strongly alkaline solution?

• 1

• 7

• 10

• 14

What is the effect of acids on blue litmus paper?

• No change

• Turns it blue

• Turns it red

• Turns it green

What type of ions do acids release in water?

• Hydroxide ions

• Hydrogen ions

• Oxygen ions

• Nitrogen ions

Which acid is also known as acetic acid?

• Hydrochloric acid

• Sulfuric acid

• Nitric acid

• Ethanoic acid

Which acid is often found in vinegar?

• Hydrochloric acid

• Sulfuric acid

• Nitric acid

• Ethanoic acid

What is the main component of gastric acid in the stomach?

• Hydrochloric acid

• Sulfuric acid

• Nitric acid

• Ethanoic acid

Which of the following is a property of bases?

• Sour taste

• Slippery feel

• Red litmus turns blue

• Blue litmus turns red

What is the pH level of bleach?

• 2

• 7

• 13

• 5

What is the pH level of baking soda?

• 9

• 3

• 7

• 12