8. In the following reaction, which of the following undergoes change in oxidation number? Hg(NO3)2 → HgO+ NO2 + 02 (un balanced) (a) Hg (b) n (c) o (d) Both (b) and (c)

8. In the following reaction, which of the following undergoes change

1.	8. In the following reaction, which of the following undergoes change in oxidation number? Hg(NO3)2 → HgO+ NO2 + 02 (un balanced) (a) Hg (b) n (c) o (d) Both (b) and (c)
Answer» H2CO3H: +1, O: -2, C: +4B. N2N: 0C. ZN(OH)42-Zn: 2+, H: +1, O: -2d. NO2-N: +3, O: -2e. LiHLi: +1, H: -1f. Fe3O4Fe: +8/3, O: -2