A) \[2{{H}_{2}}O\to 2{{H}_{2}}+{{O}_{2}}\]
B) \[2{{H}_{2}}{{O}_{2}}\to 2{{H}_{2}}O+{{O}_{2}}\]
C) \[Ca\,C{{O}_{3}}\to CaO+C{{O}_{2}}\]
D) All of these
E) None of these
Correct Answer: D
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