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Astha Bala
Asked: 2022-10-29T17:08:45+05:30 In:

What happens when:
a. Potassium metal is dropped in water
b. Potassium is heated in free supply of air
c. Potassium superoxide is dissolved in water

What happens when:
a. Potassium metal is dropped in water
b. Potassium is heated in free supply of air
c. Potassium superoxide is dissolved in water
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  1. a. When the potassium metal is dropped in water is dropped in reacts readily with water to form potassium hydroxide and hydrogen gas is evolved.
    `2K_((s))+2H_(2)O rarr 2KOH_((s))+H_(2(g))uarr`
    b. When the potassium metal is heated in free supply of air, it burns vigorously in air form superoxide.
    `K_((s))+O_(2(g))rarr KO_(2(g))`
    c. when potassium superoxide dissolved in water, it forms `KOH, H_(2)O_(2)` and `O_(2)`.
    `2KO_(2)+2H_(2)O rarr 2KOH+H_(2)O rarr 2KOH+H_(2)O_(2)+O_(2)`

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