(1) A general disposition of—
(a) all or the residue of the testator's property; or
(b) all or the residue of his or her property of a particular description—
includes any property over which he or she has a general power of appointment exercisable by will and operates as an exercise of the power.
(2) Subsection (1) does not apply if a contrary intention appears (whether in the will or elsewhere).