Worksheetsacid and alkali
Total questions: 20
Worksheet time: 10mins
The pH of pure water
5.6
7.0
8.1
0.0
What is the meaning of the above hazard warning symbol?
Corrosive
Explosive
Toxic
Radioactive
Acid in our stomach:
Hydrochloric acid
Sulfuric acid
Acetic acid
Carbonic acid
Which substance is alkali?
Toothpaste
Vinegar
Lemon juice
Soft drink
The color of universal indicator in pure water:
Red
Blue
Purple
Green
Acids taste .....
sour
bitter
sweet
umami
Rain water is slightly acidic. What is its pH?
1.0
5.6
7.0
8.2
Indigestion can be treated by drinking ....
water
antacid
vinegar
sodium hydroxide
Reaction between acid and alkali producing salt and water:
Combustion
Neutralization
Precipitation
Decomposition
Something that can be used to identify acid/alkali:
Indicator
Oxidator
Reductor
Terminator
The color of universal indicator in sodium hydroxide:
Red
Yellow
Purple
Green
What happens to the pH of an acid during neutralisation?
It stays the same
It moves toward pH 1
It moves towards pH 7
It moves towards pH 14
If you wanted to test a colourless and odourless substance at home, what household item could you use?
Red cabbage water
Bleach
Water
Vinegar
Which substance is an acid?
Water
Bleach
Orange juice
Washing powder
Which pH levels indicated a strong acid?
1-3
4-6
8-11
12-14
PH scale
pH ruler
pH scale
pH statistical tables
When you get a bee sting, what will you use to make you feel better ?
Water
Baking soda
Milk
Toothpaste
Which of the following about properties of acid is not true?
pH less than 7
Tastes bitter
Corrosive
Turns blue litmus paper to red
Which of the following will change the red litmus paper to blue?
Sodium hydroxide
Hydrochloric acid
Sulphuric acid
Nitric acid
Sodium hydroxide is used
to make fertilisers.
to make battery.
to cure gastritis.
to make detergent.
