Q.B. CH3-CH(OH)-CH2-CH3 and CH3-CH2-O-CH2-CH3

Isomerism is the existence of two or more genuinely different compounds sharing the exact same molecular formula (isomers of one another). Structural isomerism (the type developed in this chapter) occurs when isomers share a molecular formula but have a different STRUCTURAL formula, and splits into five named types: chain isomerism (different carbon skeleton/parent chain, e.g. butane vs 2-methylpropane), position isomerism (same functional group and skeleton, different position of that group, e.g. but-1-ene vs but-2-ene), functional group isomerism (same molecular formula, entirely different functional groups, e.g. ethanol vs dimethyl ether), metamerism (same molecular formula AND functional group, but unequal carbon distribution on either side of that group, e.g. ethoxyethane v …