GCSE Chemistry - Acids and Bases #34

What is the pH level of a neutral substance like pure water?

• 0

• 7

• 14

• 4

Which of the following is a common example of an alkaline substance?

• Bleach

• Acid rain

• Vinegar

• Stomach acid

What is a key advantage of using a pH probe over an indicator?

• It provides a more accurate measurement

• It is less expensive

• It is easier to use

• It changes color

How do acids behave in water?

• They release hydrogen ions

• They release hydroxide ions

• They become neutral

• They form salts

What is produced when an acid reacts with a base?

• Hydrogen gas

• Salt and water

• Only salt

• Only water