Q. Chandra’s Atmospheric Composition Explorer-2 (CHACE-2), a payload onboard Chandrayaan-2, has recently detected which of the following gas in Moon’s atmosphere?
Answer: B
Notes:
Argon-40 in Moon’s Atmosphere:
- Chandra’s Atmospheric Composition Explorer-2 (CHACE-2), a payload onboard Chandrayaan-2, has detected Noble Gas Argon-40 in Moon’s atmosphere.
- Argon-40 (Ar-40) is known to exist in the lunar exosphere. But the knowledge on its distribution at higher latitudes is lacking.
- Now, the CHACE-2 payload has detected the presence of Argon in the equatorial and mid-latitude regions of the Moon.
Source: ForumIAS

