Chemistrymedium · Past Paper
What is the IUPAC name for the hydrocarbon with the formula C2H4?
AEthane
BEthene
CEthyne
DPropene
✓ Correct Answer: B — Ethene
The formula fits CnH2n (alkenes). With two carbons, the prefix is 'eth-' and the suffix is '-ene', giving Ethene.
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