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What happens when a. Sodium metal is dropped in water? b. Sodium metal is heated in free supply of air? c. Sodium peroxide dissolves in water? |
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Answer» Solution :(i) `H_(2)` gas is evolved which catches FIRE due to the exothermicity of the reaction . `2 Na (s) + 2 H_(2)O (l) to 2 NaOH (aq) + H_(2) (g)` (ii) `Na_(2)O_(2)` along with a small amount of `Na_(2)O` is formed . `2 Na(s) + O_(2)(g) to 2 UNDERSET("(minor)") (2 Na_(2)O(s))` `Na_(2)O(s)+ (1)/(2) O_(2) (s) to underset("(major)")(Na_(2)O_(2)(s))` (III) `H_(2)O_(2)` is formed `Na_(2)O_(2) (s) + 2H_(2)O (l) to 2 NaOH (aq) + H_(2)O_(2) (l)` |
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