What is the molecular formula of the pyridine molecule?
Correct answer: B. C5H5N
- A. C₆H₅N
- B. C5H5N
- C. C5H5NH
- D. C₆H₆N
Explanation
The correct answer is B. The molecular formula C5H5N represents pyridine. Pyridine is a six-membered aromatic ring containing one nitrogen atom and five carbon atoms.
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Proteins are classified by shape, composition and structure, from primary amino acid sequence to secondary, tertiary and quaternary organisation, and their biological roles are linked to this structure. Enzymes are examined as protein biocatalysts, including active sites, substrate specificity, activation energy, cofactors and factors affecting activity.
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