MCQOPTIONS
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| 1. |
Which of the following gases is found in Lunar exosphere by the orbiter of Chandrayaan 2 recently? |
| A. | Helium-3 |
| B. | Argon-40 |
| C. | Xenon-129 |
| D. | Krypton-82 |
| Answer» C. Xenon-129 | |