Given below are the oxides:

Na₂O, As₂O₃, N₂O, NO and Cl₂O₇

Number of amphoteric oxides is :

Match List - I with List - II :

Choose the most appropriate answer from the options given below :

The highest industrial consumption of molecular hydrogen is to produce compounds of element :

Which of the following statements are correct?

(A) Both LiCl and MgCl₂ are soluble in ethanol.

(B) The oxides Li₂O and MgO combine with excess of oxygen to give superoxide.

(C) LiF is less soluble in water than other alkali metal fluorides.

(D) Li₂O is more soluble in water than other alkali metal oxides.

Choose the most appropriate answer from the options given below :