Multiple choice

Which of the following compounds consists of a pyrimidine ring fused to an imidazole ring?

  1. Indazole

  2. Benzimidazole

  3. Purine

  4. Pyrazole
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C Correct answer
Explanation

A purine is a heterocyclic aromatic organic compound, consisting of a pyrimidine ring fused to an imidazole ring. Purines, including substituted purines and their tautomers, are the most widely distributed kind of nitrogen-containing heterocycle in nature.

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