MCQOPTIONS
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| 1. |
Amount of \[_{53}{{I}^{128}}({{t}_{1/2}}=25\ \min )\] left after 75 minutes is [DCE 2002] |
| A. | \[1/6\] |
| B. | \[1/4\] |
| C. | \[1/8\] |
| D. | \[1/9\] |
| Answer» D. \[1/9\] | |