

InterviewSolution
Saved Bookmarks
1. |
Which of the following is not a redox reaction ?A. `CuO+H_(2)rarrCu+H_(2)O`B. `Na+H_(2)OrarrNaOH+1/2 H_(2)`C. `CaCO_(3)rarr CaO+CO_(2)`D. `2K+F_(2)rarr2KF` |
Answer» Correct Answer - C `overset(+2)(Ca)overset(+4-2)(CO_(3))rarroverset(+2-2)(CaO)+overset(+4-2)(CO_(2))` Since there is no change in oxidation number of any species, it is not a redox reaction. |
|