Chemistry Test 1 General Science Aptitude
Chemistry Test 1 General Science Aptitude
Question 21
Which of the following elements is found in all organic compounds?
Carbon is the fundamental element in all organic compounds.
Not clear enough?
Question 22
The purest form of iron is ____?
Wrought iron is the purest form of iron, containing very little carbon.
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Question 23
The most malleable metal is ____?
Gold is the most malleable and ductile metal.
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Question 24
The major constituent of air is ______?
Nitrogen makes up about 78% of the earth's atmosphere.
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Question 25
The first metal to be used by man was ____?
Copper was the first metal used by humans during the Chalcolithic Age.
Not clear enough?
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