Question on: JAMB Chemistry - 2021
Which one of the following is not a mixture?
A
Air
B
Mercury
C
Milk
D
Cement
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Correct Option: B
A mixture is a material made up of two or more different chemical substances which are not chemically combined.
Mercury with the chemical symbol Hg and the atomic number 80 is an element that has not reacted with another substance. When mercury reacts with another substance, it forms a compound, such as inorganic mercury salts.
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