Taking examples of magnesium and sulphur, explain how metals and non-metals produce oxides with different characteristics.
Magnesium bums in oxygen to form magnesium oxide, which dissolves in water to form magnesium hydroxide (alkali).
The equation for above reaction is given below:
$2Mg + O_2 \rightarrow 2MgO$
$MgO + H_2O \rightarrow Mg(OH)_2$
Magnesium hydroxide changes red litmus into blue.
Sulphur bums in the air to form sulphur dioxide, which dissolves in water to form sulphurous acid.
The equation for above reaction is given below:
$S + O_2 \rightarrow SO_2$
$SO_2 + H_2O \rightarrow H_2SO_3$
Sulphurous acid turns blue litmus into red.
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