MCQOPTIONS
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| 1. |
Scientists have detected the most ancient type of molecule, ________, in our universe in space for the first time ever. |
| A. | Argon fluorohydride ion |
| B. | Calcium hydride ion |
| C. | Helium hydride ion |
| D. | Potassium hydride ion |
| E. | Sodium aluminium hydride ion |
| Answer» D. Potassium hydride ion | |