KS3 7 - Acids and Alkalis

Acids taste

• fishy

• salty

• sour

• sweet

The name of acid in lemon juice is

• ethanoic

• lemonic acid

• citric acid

• sulfuric acid

Which one of these is an acid?

• salt water

• oven cleaner

• pure water

• vinegar

Which one of these is an alkali?

• lemon juice

• oven cleaner

• sugar solution

• vinegar

The colour of litmus in sulfuric acid is:

• blue

• green

• purple

• red

The pH of pure water is

• 1

• 5

• 7

• 11

The colour of universal indicator in a substance that is very acidic is:

• green

• orange

• purple

• red

The pH of a substance that is slightly alkaline could be

• 1

• 5

• 9

• 11

Universal indicator is added to a solution. The solution turns purple. The solution contains

• citric acid

• hydrochloric acid

• sodium hydroxide solution

• only water

The reaction between an acid and an alkali is

• acidification

• condensation

• evaporation

• neutralisation

Tags

NGSS.MS-PS1-5