Indicators Flashcards
1
Q
what is an indicator
A
It is used to find out whether a solution is acid or alkali
2
Q
name a plant that makes a good indicator
A
Beetroot, red cabbage, hibiscus flower
3
Q
what colour does an alkali turn
A
blue
4
Q
what colour does an acid turn
A
red
5
Q
what colour is neutral
A
green
6
Q
what substance has a ph less than 7
A
an acid
7
Q
what substance has a ph over 7
A
an alkali
8
Q
If you get a result of purple is it an acid or alkali
A
alkali
