MCQ
Iso-electronic species is
- ✓${F^ - },\,\,{O^{ - 2}}$
- B${F^ - },\,\,O$
- C${F^ - },\,\,{O^ + }$
- D${F^ - },\,\,{O^{ + 2}}$
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| LIST-I (Test) | LIST-II (Observation) | ||
| A. | $Br _2$ water test | I. | Yellow orange or orange red precipitate formed |
| B. | Ceric ammonium nitrate test | II. | Reddish orange colour disappears |
| C. | Ferric chloride test | III. | Red colour appears |
| D. | 2, 4-DNP test | IV. | Blue, Green, Violet or Red colour appear |