Have an account?
Skip to Content
Build your own quiz
Suggestions for you
.png)
20 questions
Show Answers
See Preview
- 1. Multiple Choice
What element is being Oxidized?NHOS - 2. Multiple ChoiceIs calcium oxidized or reduced in the following reaction?
2 CaO--> 2 Ca + O2OxidizedReduced - 3. Multiple ChoiceWhich of the following half reactions correctly represents a reduction half reaction?Fe →Fe2+ + 2e-Pb4+ + 2e- →Pb2+2O-2 →O2 + 4e-Fe + 3e- →Fe3+
- 4. Multiple ChoiceWhich of the following reactions is balanced by both mass and charge?Fe+2 + Al →Fe + Al+3Cu + Fe+2 → Cu+1 + Fe+3F2 + Br- --> F- + Br2Fe+2 + 2 Cu --> 2 Cu+ + Fe
- 5. Multiple Choice
Oxidation is the _________ of electrons.
loss
gain
sharing
transfer
- 6. Multiple Choice
Reduction is the ___________ of electrons.
loss
gain
sharing
transfer
- 7. Multiple Choice
Which of the following represents oxidation?
C → CH4
Fe3+ → Fe2+
Cl2 → 2Cl-
Zn → ZnO
- 8. Multiple ChoiceWhich statement is true:
Mg → Mg2+ + 2e–Mg gains 2 electronsMg2+ loses 2 electronsMg loses 1 electronMg loses 2 electrons - 9. Multiple Choice
Zinc
Hydrogen
Chlorine
None
- 10. Multiple Choice
In a redox reaction, spectator ions...
become oxidised
become reduced
remain unchanged
- 11. Multiple ChoiceWhat is the oxidation number of O in CO2?+2-1+4-2
- 12. Multiple ChoiceThe sum of all oxidation numbers in a neutral compound is ___.01-1depends on the compound
- 13. Multiple ChoiceWhat is the oxidation of C in CH4?-4-1+4+1
- 14. Multiple ChoiceWhat is oxidation number of Mn in MnO2 ?0+2-2+4
- 15. Multiple ChoiceWhat is the oxidation number of Ca in Ca3N2?+3+2-3-2
- 16. Multiple Choice
What is the oxidation state of Cu in Cu2+?
-1
-2
+2
0
- 17. Multiple Choice
What is the oxidation state of H in H2?
+2
+1
0
None of the above
- 18. Multiple Choice
H in NaH ?
+1
0
-1
None of the above
- 19. Multiple ChoiceWhat is oxidation number of H in H2O?0-2-1+1
- 20. Multiple ChoiceWhat is the oxidation number of Fe in FeO?+1-1+2-2
- Answer choicesTagsAnswer choicesTags