Q. Which of the following is the longest river of Mongolia?
Answer: Orkhon
Notes: The longest river of Mongolia is Orkhon river. It rises in the Khangai mountains in the Tsenkher sum of Arkhangai amaig at the Kherkhan mountain. Its length is about 1124 km.

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 248 in Physical Geography - Important Rivers, River Islands, Deltas and Lakes in above course in App.