ANSWER
The correct unit for molarity is mol/L
EXPLANATION
Molarity is the measures of the concentration of a solute in the solution.
Mathematically, the formula is given below as
[tex]\begin{gathered} \text{ Molarity = }\frac{\text{ moles of solute}}{\text{ liters in solution}} \\ \\ \text{ The S.I unit is mol/L} \end{gathered}[/tex]Therefore, the correct unit for molarity is mol/L