MCQOPTIONS
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| 1. |
The oxidation number of sulphur in \[{{H}_{2}}{{S}_{2}}{{O}_{7}}\] and iron in \[{{K}_{4}}Fe{{(CN)}_{6}}\] is respectively [AIIMS 2000] |
| A. | + 6 and + 2 |
| B. | + 2 and + 2 |
| C. | + 8 and + 2 |
| D. | + 6 and + 4 |
| Answer» B. + 2 and + 2 | |