1.

Barium burns in air to fromA. BaOB. `BaO_(2)`C. `Ba_(2) O_(2)`D. `Ba(OH)_(2)`

Answer» Correct Answer - A
BaO. Alkaline earth metals comine directly with `O_(2)` to form oxides which when further heated in presence of excess of `O_(2)` from peroxides.


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