Acids and alkalis

The image shows a pH scale. Which option indicates a strong alkali?

• a

• b

• c

• d

The image shows a pH scale. Which option indicates a strong acid?

• a

• b

• c

• d

What is the substance with a neutral pH of 7?

• Milk

• Water

• Orange Juice

• Blood

Which of these substances is an acid?

• Ammonia

• Oven cleaner

• Vinegar

• Soap

A purple colour when using universal indicator indicates the solution is _______________.

• neutral

• acidic

• alkali

• blackcurrant juice

What is the range of the pH scale?

• 0 -14

• 1 - 14

• 1 - 6

• 12 - 14

An alkali can react with an acid. This process is known as?

• balancing

• acidification

• combustion

• neutralisation

What happens to the pH of an acid during neutralisation?

• It stays the same

• It moves toward pH 1

• It moves towards pH 7

• It moves towards pH 14

Which of these substances is an acid?

• Water

• Bleach

• Orange juice

• Washing powder

What type of solution has a pH of 12?

• Neutral

• Acidic

• Alkali