Statement-1: $S{O}_3$  molecule acts as an electrophile 
Statement-2: In $S{O}_3$  molecule high amount of positive charge  is present on the Sulphur and multiple bond is present between dissimilar atoms.

Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1.

Statement-1 is False, Statement-2 is True

Statement-1 is True, Statement-2 is True, Statement-2 is not a correct explanation for   Statement-1.

Statement-1 is True, Statement-2 is False