1. The problem statement, all variables and given/known data -OCH3, -OH, -NH2, and the fourth choice is an alkyle, ethyne with a neg charge. the picture shows a triple bond attacked to a hydrogen. 2. Relevant equations 3. The attempt at a solution I know that OH is a relatively common base and I thought it was strong, but I have no idea how it compares with the others. I know that alkyles are are less basic than alkenes and alkanes, but the oxygens throw me off a bit. I think that by having O in them it would suggest that their conj acid would be more acidic making them more basic. Is this correct at all? Is there an easy way to determine basicity?