Correct option is A
The common symbol for an alkene is: (A) CnH2n
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Other Options:
- Alkenes are hydrocarbons that contain at least one double bond.
- The general formula for alkenes is CnH2n, where n is the number of carbon atoms in the molecule. This formula indicates that alkenes have twice as many hydrogens as carbon atoms.
- Alkanes, on the other hand, follow the formula CnH2n+2.
- CnH2n-2: This formula corresponds to alkynes, which contain a triple bond between carbon atoms.
- CnHn: This is not a valid formula for any common organic compounds.
- CnH2n+2: This is the general formula for alkanes, which are saturated hydrocarbons containing only single bonds.
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