Common titration indicators and facts about them Flashcards
1
Q
Methyl orange - colour in acid
A
Red
2
Q
Methyl orange - colour in alkali
A
Yellow
3
Q
Methyl orange - neutralisation colour
A
Orange
4
Q
Methyl orange - pH at end point
A
4.3
5
Q
Phenolphthalein - colour in acid
A
Colourless
6
Q
Phenolphthalein - colour in alkali
A
Pink
7
Q
Phenolphthalein - neutralisation colour
A
Faint pink
8
Q
Phenolphthalein - pH at end point
A
9.1
9
Q
Bromocresol green - colour in acid
A
Yellow
10
Q
Bromocresol green - colour in alkali
A
Blue
11
Q
Bromocresol green - neutralisation colour
A
Green
12
Q
Bromocresol green - pH at end point
A
4.6
13
Q
Congo red - colour in acid
A
Blue
14
Q
Congo red - colour in alkali
A
Red
15
Q
Congo red - neutralisation colour
A
Purple
