Why methanol does not give iodoform test?
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To give a positive Haloform test a molecule must have at least two carbon atoms. These must be the first two carbons in a chain and carbon number two must have an oxygen atom attached. Methanol fails to meet this
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Any compound containing CH3C=O group or CH3CH(OH) group gives a positive result with the iodoform test.
methanol is not of the form CH3CH(OH)R where R is hydrogen or hydrocarbon group.
note : Ethanol is the only primary alcohol to give the iodoform reaction.
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