Acids and Alkalis grade 6

What is the pH of distilled water?

• pH 12

• pH 3

• pH 8

• pH 7

What colour does litmus paper turn when added to an alkali?

• Blue

• Red

• Green

• Colourless

Tags

NGSS.MS-PS1-2

What colour does litmus paper turn when added to an acid?

• Blue

• Red

• Green

• Colourless

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

Tags

NGSS.MS-PS1-2

A wasp sting is alkali. Which substance would neutralise the sting?

• Vinegar

• Bleach

• Baking soda

• Distilled water

Tags

NGSS.MS-PS1-2

Which pH levels indicated a strong acid?

• 1-3

• 4-6

• 8-11

• 12-14

Which pH level indicates a weak alkali?

• 1-3

• 4-6

• 8-11

• 12-14

Which pH level indicates a weak acid?

• 1-3

• 4-6

• 8-11

• 12-14

Which pH level indicates a strong alkali?

• 1-3

• 4-6

• 8-11

• 12-14

Strong acids and alkalis are...

• Sour

• Sweet

• Corrosive/Caustic

• Burn litmus paper