Practice (interactive)
Immediate feedback drills. Scores are stored locally in your browser (no login).
Acid–base: rank acidity
Pick the strongest acid (lowest pKa) based on stability of the conjugate base.
Question: Which is most acidic?
Question: Which conjugate base is most stabilized by resonance?
Mechanisms: choose the pathway
Decide the dominant pathway from substrate + solvent + nucleophile/base.
Scenario: 3° alkyl bromide + H₂O (polar protic, weak nucleophile)
Scenario: 2° alkyl bromide + t-BuOK (strong bulky base), heat
Interactive chart: pKa → deprotonation feasibility
Move the slider: if base conjugate-acid pKa is higher, deprotonation is favored.Base strength slider
Interpretation: slider = pKa of the base’s conjugate acid (HB). Higher pKa → stronger base B⁻.
Your progress
Score: 0 correct
Next: I can add a larger question bank (randomized) and more drills (IR peak matching, R/S practice) if you want.