NO and `HNO_3` are two compounds of N. In which of them is `N_2` more oxidized?

If O_2 is removed from the formula of anhydride of HNO_2 , their the formula of the resulting compound satisfies which of the following properties?

Nitrogen shows different oxidation states in different oxides. In which of the following oxides, nitrogen is in +4 oxidation state? NO , N_2 O , N_2 O_3 , NO_2

Besides Ba_(2)O,CaOandSiO_(2) pyrex glass contains two more oxides. Which of the following are correct?

Two compounds of iron are given. FeSo_4, Fe_2(SO_4)_3 (The oxidation state of SO_4 -2 ) a. Identify the compound in which iron shows +2 oxidation state. b. Which of these compound posses Fe^3+ ions. c. write the subshell electronic configuration of Fe^3+ ions d. Give reason for the various oxidation states of transition elements.

Nitrogen forms a number of oxides and oxoacids. Which of the following is a neutral oxide of Nitrogen? N_2 O , N_2 O_5 , NO_2 , N_2 O_4