Number of molecules from below which cannot give iodoform reaction is:
Ethanol, Isopropyl alcohol, Bromoacetone, 2-Butanol, 2-Butanone, Butanal, 2-Pentanone, 3-Pentanone, Pentanal and 3-Pentanol
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Remember the structural requirements for the iodoform test. The compound must have a \( CH_3CO- \) or \( CH_3CH(OH)- \) group.