Scelta multipla
Oxidation is defined as the loss of one or more of which of the following?
162
views
6. Chemical Quantities & Aqueous Reactions
Redox Reactions
Scelta multipla
Which of the following is NOT an example of oxidation?
A
Cl_2 to 2Cl^{-}
B
Fe to Fe^{3+}
C
Zn to Zn^{2+}
D
Cu to Cu^{2+}
Guida verificata passo dopo passo1
Recall the definition of oxidation: it is the loss of electrons by a species, which results in an increase in its oxidation state.
Analyze each option by determining whether the species is losing or gaining electrons:
For Cl_2 to 2Cl^{-}: Chlorine molecules (Cl_2) are converted to chloride ions (Cl^{-}). Since Cl_2 is neutral and Cl^{-} has a negative charge, chlorine gains electrons here, which means it is reduced, not oxidized.
For Fe to Fe^{3+}: Iron (Fe) goes from a neutral atom to a +3 charged ion, indicating it loses 3 electrons, so this is oxidation.
For Zn to Zn^{2+} and Cu to Cu^{2+}: Both zinc and copper atoms lose electrons to form positively charged ions, which are examples of oxidation.
Video correlati
Pratica correlata
