The general formula for alkene
Correct answer: A. CnH2n
- A. CnH2n
- B. CnH2n+1
- C. CnH2n-1
- D. CnH2n+2
Explanation
The correct formula for alkenes is CnH2n because alkenes have a double bond between two carbon atoms. This means each carbon forms two sigma bonds with hydrogen atoms and one sigma bond with the other carbon. Option B, C, and D are incorrect because they represent different hydrocarbon compounds (alkanes and alkynes) with varying bond structures that do not match the characteristics of alkenes.
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About Chemistry of Hydrocarbons
Hydrocarbons are studied through the structures and reactions of alkanes, alkenes, alkynes and aromatic compounds. Coverage includes free radical substitution in alkanes, electrophilic addition to carbon-carbon multiple bonds, benzene substitution, aromatic stability and the difference between addition reactions of alkenes and substitution reactions of benzene.
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