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Which of the following reactions is an example of electrolytic decomposition?

Answer and explanation

Correct answer: Decomposition of acidified water by electric current

In an electrolytic decomposition reaction, an electric current causes a compound to break down into simpler substances. When electric current is passed through acidified water, it decomposes into hydrogen and oxygen: \(2H_2O(l) \xrightarrow{\text{electric current}} 2H_2(g)+O_2(g)\). Therefore, option A is correct. Option B is a photolytic decomposition reaction caused by light, not by electricity.

Related tags

ScienceClass 10Chemical ReactionsElectrolytic DecompositionElectrolysisWater Decomposition

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