MHTCET 10 May 2024 Shift 1 Paper

Concept:Dihydric compounds contain exactly two hydroxyl ($-OH$) groups in their molecule.Explanation:Crotonyl alcohol ($\mathrm{CH_3{-}CH{=}CH{-}CH_2OH}$) has only one $-OH$ group, so it is monohydric.Resorcinol is benzene-1,3-diol, which has two $-OH$ groups.Ethylene glycol ($\mathrm{HO{-}CH_2{-}CH_2{-}OH}$) has two $-OH$ groups.Quinol (hydroquinone) is benzene-1,4-diol, which also has two $-OH$ groups.Therefore, crotonyl alcohol is the compound that is NOT dihydric.Answer:Crotonyl alcohol (Option A)