Chemistry

Question Analysis
This question involves conceptual understanding of empirical vs. molecular formulas, with a focus on identifying isomers and homologous series.
The main focus is on determining if two compounds can be simplified to the same whole-number ratio.

Key Concept Explanation
Same Empirical Formula, Different Molecular Formula: Compounds must be multiples of the same empirical formula (e.g., CH₂ for alkenes).
Homologous series (e.g., alkenes, alcohols) often share empirical formulas if they are multiples of the same base.

Step-by-Step Solution
1. Derive empirical formulas for each pair:
A. C₂H₄ → CH₂; C₃H₆ → CH₂ (same empirical, different molecular)
B. CH₃OH → CH₄O; C₂H₅OH → C₂H₆O (different empirical)
C. CO₂ → C...