Electrolysis of water to form hydrogen and oxygen gases is :

precipitation

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oxidation-reduction

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distillation

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hydration

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condensation

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Solution

The correct option is A oxidation-reduction
Electrolysis of water to form hydrogen and oxygen gases is oxidation-reduction (redox) reaction.
$2 H_{2} O \to 2 H_{2} + O_{2}$
Here, hydrogen is reduced and oxygen is oxidized.
Hydrogen accepts electrons oxygen loses electrons.
$2 H^{+} + 2 e^{-} \to H_{2}$
$2 O^{- 2} \to O_{2} + 4 e^{-}$

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Electrolysis of water to form hydrogen and oxygen gases is :

The correct option is A oxidation-reductionElectrolysis of water to form hydrogen and oxygen gases is oxidation-reduction (redox) reaction. 2H2O→2H2+O2 Here, hydrogen is reduced and oxygen is oxidized.Hydrogen accepts electrons oxygen loses electrons.2H++2e−→H2 2O−2→O2+4e−