What is the alteration in the oxidation state of carbon in the given reaction?
\(\mathrm{{CH_4}_{(g)} + 4{Cl_2}_{(g)} \rightarrow {CCl_4}_{(l)} + 4 HCl_{(g)}}\)
1. | 0 to +4 | 2. | –4 to +4 |
3. | 0 to –4 | 4. | +4 to +4 |
The incorrect oxidation number of the underlined atom in the following species is:
1. | Cu2O is -1 | 2. | Cl\(O_{3}^{-}\) is +5 |
3. | K2Cr2O7 is +6 | 4. | HAuCl4 is +3 |
The oxidation state of Cr in is -
1. | –6 | 2. | +12 |
3. | +6 | 4. | +4 |