Examlex
Which of the following is a mismatch?
Compound
A substance made up of two or more elements chemically combined in a fixed proportion.
IUPAC Name
The systematic naming of chemical compounds according to the rules established by the International Union of Pure and Applied Chemistry.
Compound
A material created when two or more elements chemically combine in definite ratios.
2,4-dimethylpyridine
An organic compound with a pyridine ring and methyl groups at the 2nd and 4th positions.
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