HI ASHMITA.............

ORDER IS ABSOLUTELY RIGHT BCOZ

AS U KNOW ON PAULING SCALE  O IS MORE ELECTRONEGATIVE THAN S...............

THEREFORE  OR WILL PULL ELECTROMNS MORE THAN SR........................( DUE TO ELECTONEGATIVITY).............

THEREFORE OR>SR.............

NOW 4 OR2 , AS THERE R TWO ...........THEREFORE IT WILL PULL ELECTRONS MAXIMUM..........

THEREFORE DTRONG -I EFFECT......................HENCE