What pH is red
1 (Acid)
What pH is orange
3/4 (Acid)
What pH is green
7 (Neutral)
What pH is blue
9/10/11 (Alkali)
What pH is purple
13/14 (Alkali)
Is pH 2 Acid or Alkali or Neutral
Acid
Is pH 10 Acid or Alkali or Neutral
Alkali
Is pH 7 Acid or Alkali or Neutral
Neutral