Q. Which of the following is weakest base?

A) $Zn(OH)_{2}$
B) $NaOH$
C) $Ca(OH)_{2}$
D) $KOH$
Explanation

(a)
The hydroxides of alkali and alkaline earth metals are strong bases. Thus, $Zn(OH)_{2}$ is the weakest base

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.