Chemicals II - JSS2 Basic science Past Questions and Answers - page 1
1
What is a highly hazardous toxic chemical?
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A
Extremely safe
B
Moderately hazardous
C
Moderately hazardous
D
Non-toxic
2
Which type of chemical poses the least risk to health and the environment?
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A
Highly hazardous toxic
B
Moderately hazardous toxic
C
Non-hazardous and non-toxic
D
Chemicals with unknown properties
3
What safety measures should be followed when using chemicals?
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A
Ignore manufacturer's instructions
B
Wear appropriate protective equipment
C
Store chemicals randomly
D
Disregard safety signs
4
How should chemicals be stored to ensure safety?
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A
Without labels
B
In open containers
C
In designated containers with proper labeling
D
Randomly placed around the workspace
5
What should you do before using a chemical?
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A
Read and understand the safety instructions
B
Ignore the safety instructions
C
Store the chemical without checking its properties
D
Assume it is safe to use without any precautions
6
What category of chemical poses a moderate risk to health?
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A
Highly hazardous toxic
B
Moderately hazardous toxic
C
Non-hazardous and non-toxic
D
Chemically inert
7
Which chemicals should be handled with extreme caution?
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A
Non-hazardous and non-toxic
B
Moderately hazardous toxic
C
Chemicals with unknown properties
D
Non-reactive chemicals
8
What should you do if you encounter a safety sign indicating a chemical hazard?
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A
Ignore it
B
Follow it closely
C
Disregard it and continue working
D
Remove it
9
What is the primary purpose of labeling chemical containers?
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A
To confuse users
B
To make them look appealing
C
To ensure proper identification and safety information
D
To save costs
10
Which type of chemical is considered extremely dangerous even in small amounts?
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A
Moderately hazardous toxic
B
Non-hazardous and non-toxic
C
Highly hazardous toxic
D
Chemically neutral
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