Question

The base dissociation constant, Kb. of CH3NH₂ is 4.4 x 10-4. What does theKb value indicate about this compound?OA. CH3NH₂ is a weak base.OB. CH3NH₂ is a weak acid.OC. CH₂NH₂ is a strong acid.OD. CH3NH₂ is a strong base

Answer 1

A. CH3NH₂ is a weak base.

Step-by-step explanation

The base dissociation constant, Kb or base ionization constant, is an equilibrium constant that refers to the dissociation. If the value of Kb is small, very little, that is much less than 1, the base is dissociated only to a small extent and so is said to be a weak base.

Since the given Kb value ( 4.4 x 10^-4) of CH3NH₂ is less than 1, then CH3NH₂ is a weak base.

The correct answer is A. CH3NH₂ is a weak base.