Litmus Paper PH

What is the pH of a neutral solution?

• around 1 - 3

• around 5 - 7

• 7

• 9

A liquid has a pH of 1. What type of liquid is it?

• weak acids

• strong acids

• weak alkaline

• strong alkaline

A liquid has a pH of 14. What type of liquid is it?

• weak acids

• strong acids

• weak alkaline

• strong alkaline

A liquid has a pH of 5. What type of liquid is it?

• weak acids

• strong acids

• weak alkaline

• strong alkaline

A liquid has a pH of 8. What type of liquid is it?

• weak acids

• strong acids

• weak alkaline

• strong alkaline

what colour does Universal Indicator go in a liquid with pH of 4?

• red

• yellow

• green

• blue

Tick all the correct statements

• blue litmus paper will turn red in sodium hydroxide

• blue litmus paper will not change colour in sodium hydroxide

• red litmus paper will turn blue in sodium hydroxide

• red litmus paper will not change colour in sodium hydroxide

Tags

NGSS.MS-PS1-2

Tick all the ingredients that can be made into common indicator.

• red cabbage

• apple

• blackcurrant

• beetroot

Tick all the substances that are more acidic than baking soda.

• coffee

• ammonia solution

• water

• battery

Drain cleaner is a stronger acid compared to milk

• true

• false

Tags

NGSS.MS-PS1-2