1.

The compounds(s) formed upon combustion of sodium metal in excess air is/areA. `Na_(2)O_(2)`B. `Na_(2)CO_(3)`C. `NaO_(2)`D. `NaOH`

Answer» Correct Answer - 1
On combustion in excess of air alkali metals form different type of oxides as given in the following table `:`
Principal Combustion Product ( Minor Product )
`{:(ul("Alkali Metal"" ""Oxide"" ""Peroxide"" ""Superoxide")),("Li"" "Li_(2)O" "(Li_(2)O_(2))),(Na" "(Na_(2)O)" "Na_(2)O_(2)),(K" "KO_(2)),(Rb" "RbO_(2)),(Cs" "CsO_(2)):}`


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