Indicators Flashcards
1
Q
What is an indicator?
A
An indicator is a chemical that turns a different colour depending on whether added to an acid or an alkali.
2
Q
Give three types of indicators
A
The universal indicator
Litmus
Homemade indicators made from red cabbage and beetroot juice
3
Q
What is litmus made of?
A
Lichen, fungi and algae
4
Q
Summaries the universal indicator
A
It is a mixture of different indicators
It shows the pH of a substance
5
Q
What happens when acid or alkalis are added to litmus?
A
Litmus turns red from blue when it is under acidic conditions. And red litmus turns blue from red when it is under alkaline conditions.
