WorksheetsSection 9.2 Fun Game
Total questions: 10
Worksheet time: 6mins
Which of the following indicators CANNOT be used to test for alkali?
Red litmus paper
Blue litmus paper
pH paper
Universal indicator
If a solution turn red litmus paper to blue, then
the solution is acidic.
the solution is alkaline.
the solution is neutral.
the solution may be hydrochloric acid.
After adding 2 drops of universal indicator to an solution, it turns red. The solution could be
lemon juice
limewater
drain cleaner
water
Mr. Leung measures the pH of a solution. The pH shown is 4.3. What apparatus is used by Mr. Leung?
pH paper
Universal indicator
pH meter
Mr. Leung's tougue
Which of the following indicator should be used to measure the pH of a cup of black coffee?
Universal indicator
pH paper
pH meter
Litmus solution
If a solution turns blue (a) paper red, the solution is acidic.
If a solution turns universal indicator purple, the solution is
acidic.
alkaline.
neutral.
An alkaline solution should have a pH _____ 7.
>
<
=
A solution is acidic. Which of the following could be its pH value?
3
7
9
14
Which of the following is an advantage of using a pH meter instead of a universal indicator?
It can give a more accurate measurement.
It is much more convenient.
We do not need to clean the pH meter after use.
Electricity is required for the pH meter to operate.
