JAMB Chemistry 2024 Paper

Concept:Functional group isomers have the same molecular formula but different functional groups.Explanation:Compound $S$ has the formula $\mathrm{ROR'}$, which is the ether functional group.Compound $V$ has the formula $\mathrm{ROH'}$; this represents an alcohol functional group, $\mathrm{R{-}OH}$.Alcohols and ethers can have the same molecular formula when they contain the same total number of carbon atoms.A good example is ethanol, $\mathrm{C_2H_5OH}$, and methoxymethane, $\mathrm{CH_3OCH_3}$.Both compounds have the molecular formula $\mathrm{C_2H_6O}$.However, ethanol has an alcohol functional group while methoxymethane has an ether functional group.Since the molecular formula is the same but the functional groups are different, these two compounds are functional group isomers.Therefore, the two compounds from the table that can form functional group isomers are $S$ and $V$.Answer:The correct option is C. S and V.