The hydroxyl groups in alcohol molecules are responsible for hydrogen bonding between the alcohol molecules. As greater energy is required to overcome these strong intermolecular forces ...

In the water molecule, the oxygen and hydrogen atoms share electrons in covalent bonds ... Opposite polar ends of molecules attract and hold one molecule to another. Alcohol has one O–H bond which is ...

The sucrose molecule has many oxygen-hydrogen (O–H) bonds which are polar ... The water is polar, so it dissolves the polar color and sugar. The alcohol has a polar area but a larger non-polar area.

For more information, read about how alcohol can kill germs. 2. Hydrogen peroxide Hydrogen peroxide isn't as effective as some chemical disinfectants, like bleach, but it does effectively kill ...