Question on: JAMB Chemistry - 2023
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Which of the following is an example of an endothermic reaction?
A
Combustion of propane (C\(_3\)H\(_8\)) to produce carbon dioxide (CO\(_2\)) and water (H\(_2\)O).
B
Burning of methane (CH\(_4\)) in the presence of oxygen
C
Formation of table salt (NaCl) from sodium (Na) and chlorine (Cl\(_2\)).
D
Decomposition of hydrogen peroxide (H\(_2\)O\(_2\)) into water (H\(_2\)O) and oxygen (O\(_2\)).
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Correct Option: D
The decomposition of hydrogen peroxide (Hâ‚‚Oâ‚‚) into water (Hâ‚‚O) and oxygen (Oâ‚‚) is an example of an endothermic reaction. In this reaction, energy is absorbed to break the bonds in hydrogen peroxide, leading to the formation of water and oxygen.
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