Question

naoh and bleach have several characteristics in common. which is not one of these shared characteristics? a taste bitter. b they have a ph<7. c they conduct electricity in solution. d they produce oh⁻ in solution.

Explanation:

NaOH (a base) and bleach (usually basic, e.g., sodium hypochlorite solution) are basic. Bases taste bitter, conduct electricity (ionic in solution), and produce $\ce{OH-}$. Acids have pH < 7, bases have pH > 7. So "They have a pH < 7" is not a shared characteristic.

Answer:

B. They have a pH<7.