MCQOPTIONS
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MCQOPTIONS
| 1. |
Which of the following pairs involves isoelectronic ions [UPSEAT 2004] |
| A. | \[M{{n}^{3+}}\]and \[F{{e}^{2+}}\] |
| B. | \[M{{n}^{2+}}\] and \[F{{e}^{3+}}\] |
| C. | \[C{{r}^{3+}}\] and \[F{{e}^{2+}}\] |
| D. | \[F{{e}^{2+}}\] and \[C{{o}^{2+}}\] |
| Answer» C. \[C{{r}^{3+}}\] and \[F{{e}^{2+}}\] | |