acid and alkali

alkali has pH value ________ than 7

• lower

• higher

which one turns blue litmus paper red?

• distilled water

• detergent

• vinegar

• limewater

• toothpaste

when a drop of phenolphthalein is put into an alkaline substance, it will turn ________

• red

• colourless

• green

• pink

• blue

What is the pH of distilled water?

• pH 12

• pH 3

• pH 8

• pH 7

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

If you wanted to test a colourless and odourless substance at home, what household item could you use?

• Red cabbage water

• Bleach

• Water

• Vinegar

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

Strong acids and alkalis are...

• Sour

• Sweet

• Corrosive/Caustic

• Burn litmus paper