Acids and alkalis quiz

What colour does litmus paper turn into when acid is dropped onto it?

• Blue

• Green

• Yellow

• Orange

What colour does litmus paper turn into when alkali is dropped onto it?

• Blue

• Green

• Yellow

• Red

What colour does litmus paper turn into when ph scale 7 is dropped onto it?

• Blue

• Green

• Yellow

• Red

What are acids and alkalis?

• Corrosive

• They are the same as each other

• groups of chemicals with different ph levels

• Two different elements

Which PH level is more acidic?

• 3

• 2

• 6

• 8

Can acids and alkalis be used to balance each other to make water safe to swim in? (TRUE OR FALSE)

• True

• False

People add acid to their food?

• False

• True

Are all acids dangerous?

• False

• True

Does an alkali dissolve in water?

• Yes

• No

What is a alkalis job?

• To dissolve dirty particles in water

• To make water turn blue

• To neutralise an acid

• Nothing