Ans: The difference between subset and powerset is:A Subset is a set that contains all the elements that are a member of another set. Whereas a powerset is set of all the subsets.  A Subset is denoted by the symbol ⊆, and powerset is denoted by P(). Let us take an example where set A is {1, 2} and set D is {2}. Therefore it can be said that set D is a subset of set A. Now, suppose we have a set A ={1, 2} then subsets of A can be {}, {1}, {2}, {1, 2} and so the powerset of A, i.e. P(A) = {{}, {1}, {2}, {1, 2}}.