Acids and alkalis Flashcards
(10 cards)
1
Q
What is the range of the pH scale?
A
0-14
2
Q
What pH number indicates an acidic solution?
A
Less than 7
3
Q
What pH number indicates an alkaline solution?
A
Greater than 7
4
Q
What pH number indicates a neutral solution?
A
Exactly 7
5
Q
What is used to find the pH of any solution?
A
Universal indicator
6
Q
In what forms can universal indicator be found?
A
- Solution
- Paper
7
Q
What colour would an strong acid and universal indicator make?
A
Red
8
Q
What colour would an weak acid and universal indicator make?
A
Yellow
9
Q
What colour would an weak alkaline and universal indicator make?
A
Dark Green, Light blue or Turquoise
10
Q
What colour would an strong alkaline and universal indicator make?
A
Purple / Violet
