The main oxides formed on combustion of Li, Na and K in air are respectively

Question

The main oxides formed on combustion of Li, Na and K in air are respectively (A) Li2O,Na2O2 and KO2 (B) Li2O,Na2O and KO2 (C) LiO2,Na2O2 and K2O (D) Li2O2,Na2O2 and KO2

Tardigrade Admin · Accepted Answer

The stability of the oxide of alkali metals depends upon the comparability of size of cation and anion. Therefore the main oxide of alkali metals formed on excess of air are as follows <img src=../../images/tjoiaulbmkpkfjhvwvpvtihccdiwnydedtgwafvvhmqfyjkvxg.jpeg" style="max-width:100%; object-fit:contain />

Q. The main oxides formed on combustion of Li, Na and K in air are respectively

$L i_{2} O, N a_{2} O_{2}$ and $K O_{2}$

$L i_{2} O, N a_{2} O$ and $K O_{2}$

$L i O_{2}, N a_{2} O_{2}$ and $K_{2} O$

$L i_{2} O_{2}, N a_{2} O_{2}$ and $K O_{2}$

Q. The main oxides formed on combustion of Li, Na and K in air are respectively

Li2​O,Na2​O2​ and KO2​

Li2​O,Na2​O and KO2​

LiO2​,Na2​O2​ and K2​O

Li2​O2​,Na2​O2​ and KO2​

$L i_{2} O, N a_{2} O_{2}$ and $K O_{2}$

$L i_{2} O, N a_{2} O$ and $K O_{2}$

$L i O_{2}, N a_{2} O_{2}$ and $K_{2} O$

$L i_{2} O_{2}, N a_{2} O_{2}$ and $K O_{2}$