Question
What is the molecular formula and structural formula of a cyclic hydrocarbon whose one molecule contains 8 hydrogen atoms?
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Answer
The molecular formula of a cyclic hydrocarbon is C4H8, as it satisfies the general formula of a cyclic hydrocarbon, i.e. CnH2n. Here, the number of hydrogen atoms is already given as 8, i.e. 2n = 8. Therefore, $\text{n} = \frac{8}{2}=4.$ Here, n represents the number of carbon atoms. Therefore, the molecular formula is C4H8. The structural formula of the cyclic hydrocarbon C4H8 is as follows:
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