Question

Which of the following hydroxides, is a strongest base?

• A. $LiOH$
• B. $NaOH$
• C. $KOH$
• D. $Ca{{(OH)}_{2}}$

Answer 1

Answer: (C)

$KOH$

Answer 2

Potassium hydroxide or caustic potash (KOH) is the strongest base among these hydroxides. Basic strength of hydroxide increase in a group from top to bottom and decrease in a period from left to right.