Colours Year 13 Flashcards
1
Q
MnO4-
(KmO4/ potassium manganate) Colour
A
Dark purple
2
Q
Mn2+ colour
A
Pink (light and usually colourless in dilute solutions)
3
Q
Cr2O7(2-)
(K2Cr2O7/ potassium dichromate) colour
A
Orange
4
Q
Cr3+ colour
A
Green
5
Q
Methyl Orange colour change and range
A
Red to Yellow
3.5-4.5
6
Q
Litmus pH range and colour
A
Red to Blue
6-8
7
Q
Thymol Blue colour and pH range
A
Red to yellow
1.5-2.5
8
Q
Bromothymol Blue colour and pH range
A
Yellow to Blue
6-7.5
9
Q
Phenolphthalein colour and pH
A
Colourless to pink
8.3-10
10
Q
Ti3+ colour
A
Purple
11
Q
V2+ colour
A
Purple
12
Q
V3+ colour
A
Green
13
Q
V4+ colour
A
Light blue
14
Q
V5+ colour
A
Yellow
15
Q
Cr2+ colour
A
Dark blue
