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WorksheetsACIDS AND BASE
Total questions: 10
Worksheet time: 6mins
Which of the substance is acidic?
Detergent powder
Limewater
Vinegar
Baking powder
Acid is a chemical compound which ionises in water to produce ...
hydrogen atoms
hydrogen ions
hydroxide ions
oxygen atoms
In water, alkalis will ionise to produce ...
hydrogen ions
hydroxide ions
ammonium ions
Properties of substance A:
1. Taste bitter
2. Feels slippery like soap when touched
3. Has pH more than 7
4. Changes red litmus paper to blue
Based on the properties of substance A, we can predict that substance A is an
alkali
acid
salt
An acid changes the blue litmus paper to red.
Statement above is TRUE or FALSE?
True
False
Acids and alkalis only show their properties in the presence of (a)
In acidic solution, methyl orange is .........in colour
yellow
orange
red
In alkaline solution, the phenolphthalein is ........in colour
colourless
pink
blue
purple
In neutral solution, an universal indicator is ...........in colour.
red
green
purple
yellow
The process that occur when an acid reacts with an alkali to produce salt and water is called...
coagulation
sublimation
neutralisation
diffusion
