Question

metallic oxide form an alkali give reason​

Answer 1

Explanation:

Alkali metal oxides

Sodium oxide (Na2O) is a white solid that melts at 1132 °C and decomposes at 1950 °C. ... Potassium oxide (K2O) is a pale yellow solid that decomposes at 350 °C. Rubidium oxide (Rb2O) is a yellow solid that melts at 500 °C. Caesium oxide (Cs2O) is a yellow-orange solid that melts at 490 °C.

Answer 2

Yes, The alkali metals react with oxygen to form several different compounds: suboxides, oxides, peroxides, superoxides, and ozonides. They all react violently with water.