Which of the following is not a chemical element?

copper
iron
brass
chromium
Copper, iron and chromium are chemical el­e­ments. Brass is a metal alloy made of copper and zinc.

Answers distribution

copper
iron
brass
chromium
answers
flagFinland
0%
0%
100%
0%
26
flagNorway
0%
0%
100%
0%
12
flagItaly
0%
0%
92%
7%
14
flagGermany
0%
2%
91%
5%
34
flagthe Philippines
8%
0%
91%
0%
12
flagFrance
0%
0%
90%
9%
11
flagMalaysia
0%
0%
90%
0%
10
flagPoland
2%
3%
88%
4%
3305
flagthe United States
1%
3%
86%
7%
181
flagCanada
0%
9%
85%
4%
21
flagPakistan
0%
7%
85%
7%
14
flagIndia
1%
5%
83%
7%
80
flagAustralia
0%
0%
81%
18%
11
flagUU
6%
3%
80%
3%
31
flagthe United Kingdom
7%
4%
78%
9%
122
flagRepublic of Ireland
8%
8%
66%
16%
12

Gender

men90%
women91%
copper
1%
2%
iron
3%
3%
brass
90%
92%
chromium
4%
2%

Language versions

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answers
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Which of the following is not a chemical element?
429
82%

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Illustration: Matti Mattila
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