Single Answer MCQ
Q-00004403
Which of the following is an example of a decomposition reaction?
1
2H2 + O2 → 2H2O
2
CaCO3 → CaO + CO2
3
Zn + H2SO4 → ZnSO4 + H2
4
NaOH + HCl → NaCl + H2O
Answer and Solution
Answer
B. CaCO3 → CaO + CO2
Solution:
The equation CaCO3 → CaO + CO2 is a decomposition reaction where calcium carbonate breaks down into calcium oxide and carbon dioxide.
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