MCQOPTIONS
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| 1. |
Which of the following lanthanoid ions is diamagnetic? (At nos. Ce = 58, Sm = 62, Eu = 63, Yb = 70) |
| A. | \[S{{m}^{2+}}\] |
| B. | \[E{{u}^{2+}}\] |
| C. | \[Y{{b}^{2+}}\] |
| D. | \[C{{e}^{2+}}\] |
| Answer» D. \[C{{e}^{2+}}\] | |