Solved UPSC CDS/OTA Question
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Q · Chemical EquationsMedium · 45s
Which is a correct example of thermal decomposition?
TopicChemical Equations
Question Typemultiple choice
DifficultyMedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Calcium carbonate decomposes on heating to give quicklime and carbon dioxide.
Final Answer: Option A — CaCO₃ → CaO + CO₂