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Question
In certain reaction a change of state is observed i.e. solid to liquid, liquid to gas etc. – State the change of state of the products – to give the respective reactant.
\[\ce{2H2O ->[electric][current] 2H2 + O2}\]
Solution
Decomposition of water
\[\ce{2H2O[l]\underset{\text{current}}{->} \underset{\text{oxygen}}{2H2[g]} + O2[g]}\]
The liquid (products) changes to gas (reactants) state.
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