Indicator Colours Flashcards
(6 cards)
1
Q
What colour is red litmus paper in an acid, an alkali and a neutral substance.
A
Acid: red
Alkali: blue
Neutral: red
2
Q
What colour is blue litmus paper in an acid, an alkali and a neutral substance.
A
Acid: red
Alkali: blue
Neutral: blue
3
Q
What colour is methyl orange in an acid, an alkali and a neutral substance.
A
Acid: red
Alkali: orange
Neutral: orange
4
Q
What colour is screened methyl orange in an acid, an alkali and a neutral substance.
A
Acid: orange/red
Alkali: green/black
Neutral: green
5
Q
What colour is phenolphthelene in an acid, an alkali and a neutral substance.
A
Acid: clear
Alkali: purple
Neutral: clear
6
Q
What colour is universal indicator in an acid, an alkali and a neutral substance.
A
Acid: brick red
Alkali: blue
Neutral: green
