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WorksheetspH Scale and Indicators
Total questions: 12
Worksheet time: 6mins
An acid’s pH is between :
0 to 6
7
8-14
6-14
The pH scale 8-14 are...
acids
alkali
neutral
A solution with a pH of 7.0 would be...
Acid
Alkali
Neutral
Acid and Alkali
In a test of pH levels, a baking soda has a pH of 9 and bleach has a pH of 12. What is true about there relationship?
Both of the solution are alkalis
Both of the solution are acids
The Baking soda is an acid and the Bleach is an alkali
The baking soda is an alkali and the Bleach is an acid.
Which of the following is the strongest base?
4
14
7
15
This piece of pH paper has been dipped into:
An acid
An alkali
A neutral substance
What happen when acidic subtances are tested with litmus paper?
Blue litmus paper change to red
No change on red litmus paper
No change on blue litmus paper
Red litmus paper change to blue
Which of the properties of alkaline substance is NOT TRUE?
taste bitter
slippery
turn red litmus paper to blue
turn blue litmus paper to red
Vinegar has a pH value of 3. What happens when sodium hydroxide (alkali) is added to it?
An explosion is created
The pH value decreases
The pH value increases
Nothing changes
