These questions are based on the following letter / number / symbol arrangement. Study it carefully and answer the questions :
7 D 5 # A B 1 % K $ 4 E J F 3 * 2 H I @ L 6 Q U © 9 M T 8 W
Four of the following five are alike in a certain way on the basis of their positions in the above arrangement and so form a group. Which is the one that does not belong to the group?