Question

Which of the following hydroxide is most basic ?
(a) Mg (OH) 2 (b) Ba (OH) 2 (c) Ca(OH) 2 (d) Be (OH) 2

Answer 1

Answer:

Ba(OH)2  must be most basic. This is because as we move down, the metallic nature of element increases and metals form basic hydroxides therefore down in the group the basic nature of hydroxide increases.