Answer
(a) Strong
(b) Weak
(c) Strong
(d) Weak
(e) Weak
(f) Weak
(g) Strong
(h) Weak
(i) Weak
Work Step by Step
There are 7 common strong acids:
$HI, HCl, HBr, HClO_4, HClO_3, H_2SO_4$ and $ HNO_3$.
Unless stated otherwise, other acids are weak.