Indicators Flashcards
1
Q
Colour of Litmus in an Acid?
A
Red
2
Q
Colour of Litmus in an Alkaline?
A
Blue
3
Q
Colour of Methyl Orange in an Acid?
A
Red
4
Q
Colour of Methyl Orange in an Alkaline?
A
Yellow
5
Q
Colour of Litmus in a Neutral solution?
A
Purple (equal red and blue)
6
Q
Colour of Universal Indicator at Neutral?
A
Green
7
Q
What colour litmus papers are commonly used?
A
Red or Blue, depending on what is being tested.
8
Q
Colour of Methyl Orange at neutral?
A
Yellow
9
Q
Colour of Phenolphthalein at neutral?
A
Colourless
10
Q
Colour of Phenolphthalein for Alkaline?
A
Pink
11
Q
Colour of Phenolphthalein for Acid?
A
Colourless
12
Q
Standard colour of Universal Indicator for Acid?
A
Red
13
Q
Standard colour of Universal Indicator for Alkaline?
A
Blue
14
Q
What can be used to identify a pH easily without an indicator?
A
pH probe.
