The IUPAC names for the compounds CH3COOH and CH2 = CH2 are…
The IUPAC names for the compounds CH3COOH and CH2 = CH2 are respectively
A. acetic acid and ethane
B. ethanoic- acid and ethene
C. methanoic acid and ethylene
D. ethanol and ethene.
CH3COOH = Ethanoic acid or Acetic acid.
CH2 = CH2 = Ethene or ethylene.
Now for the right answer to the above question:
- Option A is incorrect. acetic acid is the old name for ethanoic acid, besides CH2=CH2 is not ethane.
- Option B is correct. ethanoic acid and ethene are respectively the correct IUPAC designation.
- C is incorrect. CH3COOH is not methanoic but ethanoic acid, all the carbons should be counted.
- D is not the correct answer. CH3COOH is not ethanol.
You may please note these/this:
- Although acetic acid is another name for ethanoic acid, it is not actually an IUPAC designation.
- Although ethylene is another name for ethene, it is also not actually an IUPAC designation.
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/ culled from 2016 JAMB-UTME Chemistry past question 32 /