Why do some transition metals have multiple oxidation states? transition metals have multiple oxidation states because of their sublevel.

because it contain  5 d-orbitals.

Explanation:

unlike alkali and alkaline earth metals, transition metals have 5d-orbitals. electrons are around the nucleus some are away and some are close to it. Electrons change their energy levels at suitable conditions and as transition metals having 5-d orbitals so its electrons can easily goes to other transition state thus causing multiple oxidation states.

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.