Describe anomalous behaviour of oxygen as compared with other elements of group 16 with reference to :
(a) Magnetic property (b) Oxidation state
(c ) Hydrides

Explanation

(a) Magnetic property : Oxygen `(O_(2))` is paramagnetic while others are diamagnetic . Oxygen is paramagnetic due to two unpaired electrons in its outermost shell .
(b) Oxiddation state : Oxygen shows oxidtion state of - 2 in most of its compunds . It also shows an oxidation state of `+` 2 in `Fe_(2)O " and" -1 "in " H_(2)O_(2)` and it connot show oxidation state beyond 2, while , other elements shows oxidation state of `+ 2 , + 4 "and" + 6 ` because these elements have vacant d - orbitals , so that their shell can expand .
(c ) Hydrides : Hydrides of oxygen such as `H_(2)O` axists as liquid while all other hydrides are gases.