Answer: Ethanoic acid.
- A Methanoic acid
- B Ethanoic acid
- C Propanoic acid
- D Butanoic acid
Correct answer: B. Ethanoic acid
Explanation: CH<sub>3</sub>COOH contains two carbon atoms and a carboxylic acid group, so it is ethanoic acid.
Geometric (cis-trans) isomers of 1,2-dichloroethene differ only in the relative arrangement of groups across the rigid C=C double bond.
Concept context
General Organic Chemistry covers the rules behind all organic reactions. Covers inductive effect, resonance, hyperconjugation, types of reactions (substitution, addition, elimination), and isomerism including optical and geometric forms.
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