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- 1. Multiple Choice
Which process involves the transfer of electrons?
double replacement
neutralization
oxidation-reduction
sublimation
- 2. Multiple Choice
During an oxidation-reduction reaction, the number of electrons gained is
equal to the number of electrons lost
equal to the number of protons gained
less than the number of electrons lost
less than the number of protons gained
- 3. Multiple Choice
During which process does an atom gain one or more electrons?
transmutation
reduction
oxidation
neutralization
- 4. Multiple Choice
When a lithium atom forms an Li+ ion, the lithium atom
gains a proton
gains an electron
loses a proton
loses an electron
- 5. Multiple Choice
Which change in oxidation number indicates oxidation?
-1 to +2
-1 to -2
+2 to -3
+3 to +2
- 6. Multiple Choice
The oxidation number of nitrogen in N2 is
+1
0
+3
-3
- 7. Multiple Choice
Oxygen will have a positive oxidation number when combined with
fluorine
chlorine
bromine
iodine
- 8. Multiple Choice
The oxidation numbers of all the atoms in H2SO4 must add up to
0
+5
+9
+16
- 9. Multiple ChoiceWhat is oxidation number of H in H2O?0-2-1+1
- 10. Multiple ChoiceWhat is oxidation number of Cr in Cr2O72-?-2+2+6+12
- 11. Multiple ChoiceWhat is oxidation number of P in K3PO4?+1+5-20
- 12. Multiple ChoiceWhat is oxidation number of H in CaH2?+1-10+2
- 13. Multiple ChoiceWhat is oxidation number of Fe in FeO ?+2-20+1
- 14. Multiple ChoiceWhat is oxidation number of Ca in CaCl2 ?-1-2+1+2
- 15. Multiple ChoiceWhat is oxidation number of O in O2 ?0-2+1+2
- 16. Multiple ChoiceWhat is oxidation number of O in H2O2 ?-2-1/2+1-1
- 17. Multiple ChoiceWhat is oxidation number of Na in Na+ ?0+1/2+1-1
- 18. Multiple ChoiceWhat is oxidation number of Mn in MnO2 ?0+2-2+4
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