Chemicals II - JSS2 Basic science Past Questions and Answers - page 1

1

What is a highly hazardous toxic chemical?

A

Extremely safe

B

Moderately hazardous

C

Moderately hazardous

D

Non-toxic

correct option: c
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2

Which type of chemical poses the least risk to health and the environment?

A

Highly hazardous toxic

B

Moderately hazardous toxic

C

Non-hazardous and non-toxic

D

Chemicals with unknown properties

correct option: c
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3

What safety measures should be followed when using chemicals?

A

Ignore manufacturer's instructions

B

Wear appropriate protective equipment

C

Store chemicals randomly

D

Disregard safety signs

correct option: b
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4

How should chemicals be stored to ensure safety?

A

Without labels

B

In open containers

C

In designated containers with proper labeling

D

Randomly placed around the workspace

correct option: c
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5

What should you do before using a chemical?

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

correct option: a
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6

What category of chemical poses a moderate risk to health?

A

Highly hazardous toxic

B

Moderately hazardous toxic

C

Non-hazardous and non-toxic

D

Chemically inert

correct option: b
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7

Which chemicals should be handled with extreme caution?

A

Non-hazardous and non-toxic

B

Moderately hazardous toxic

C

Chemicals with unknown properties

D

Non-reactive chemicals

correct option: b
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8

What should you do if you encounter a safety sign indicating a chemical hazard?

A

Ignore it

B

Follow it closely

C

Disregard it and continue working

D

Remove it

correct option: b
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9

What is the primary purpose of labeling chemical containers?

A

To confuse users

B

To make them look appealing

C

To ensure proper identification and safety information

D

To save costs

correct option: c
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10

Which type of chemical is considered extremely dangerous even in small amounts?

A

Moderately hazardous toxic

B

Non-hazardous and non-toxic

C

Highly hazardous toxic

D

Chemically neutral

correct option: c
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