Acids and Alkalis

Acids taste _________________.

• sour

• spicy

• sweet

• bitter

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

• a

• b

• c

• d

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

• a

• b

• c

• d

The pH scale is a range from:

• 1-7

• 0-14

• 1-20

What is the substance with a neutral pH of 7?

• Milk

• Water

• Orange Juice

• Blood

Which substance is alkali?

• Toothpaste

• Lemon juice

• Vinegar

• Soft drink

Which substance is acid?

• Ammonia

• Toothpaste

• Vinegar

• Soap

Which pH levels indicated a strong acid?

• 1-3

• 4-6

• 8-11

• 12-14

Alkalis feel...

• Rough

• Soapy

• Granulated

• Smooth

Which of the following acids do we have in our stomach?

• Ethanoic acid

• Hydrochloric acid

• Nitric acid

• Sulphuric acid