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Define the term decomposition reaction. Give one example each of thermal decomposition and electrolytic decomposition. |
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Answer» Reaction in which a single reactant breaks down to give simpler products. Thermal decomposition CaCO3+heat → CaO+CO2 Electrolytic decomposition- 2H2O+ Electric current → 2H2+O2 Detailed Answer: In a decomposition reaction, a single reactant breaks down into two or more simpler products. When a decomposition reaction is carried out by heating, it is called thermal decomposition reaction. CaCO3(s) + heat → CaO(s) + CO2(g) CaCO3(s)-Calcium carbonate CaO(s)-Calcium oxide CO2(g)-Carbon dioxide When a decomposition reaction is carried out with the help of electric current, the process is called electrolysis. 2H2O(l) + Electric current →2H2(g) +O2(g) 2H2O(l)-Water 2H2(g)-Hydrogen gas O2(g)-Oxygen gas |
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