Multiple choice

What is the general formula of alkenes?

  1. CnH2n

  2. CnH2n+2

  3. CnH2n-2

  4. CnH2n-4
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A Correct answer
Explanation

Alkenes are hydrocarbons with one carbon-carbon double bond. This reduces the hydrogen count by 2 compared to alkanes, giving the general formula CnH2n where n is the number of carbon atoms.

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