ACIDS AND BASE
Authored by TANG Moe
Chemistry
5th Grade
Used 5+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the substance is acidic?
Detergent powder
Limewater
Vinegar
Baking powder
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Acid is a chemical compound which ionises in water to produce ...
hydrogen atoms
hydrogen ions
hydroxide ions
oxygen atoms
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In water, alkalis will ionise to produce ...
hydrogen ions
hydroxide ions
ammonium ions
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An acid changes the blue litmus paper to red.
Statement above is TRUE or FALSE?
True
False
6.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
Acids and alkalis only show their properties in the presence of (a)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In acidic solution, methyl orange is .........in colour
yellow
orange
red
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