Venus.
Neptune
It takes about 59 Earth days for Mercury to complete one full rotation on its axis.
Mercury is the closest planet to the sun thus Mercury has the shortest orbit duration. It takes the planet Mercury 88 days to rotate around the sun.
Jupiter has a longer year than mercury because it takes longer for it to revolve around the sun.
Mercury
Mercury. Its takes around 58.65 days to rotate once on its axis relative to background stars.
the planet which completes its journey first is mercury i think
Mercury. Mercury takes 88 days to go around the sun.
The question is inconsistent. Rotation is the period a planet or moon rotates about its own axis. Revolution is the period a planet or moon revolves about its parent planet or sun. Mercury takes 88 Earth days to revolve about the Sun. It takes 59 Earth days to rotate about its own axis.
The planet that takes 88 days to make one trip around the sun is Mercury. It is the smallest planet in the solar system.
Mercury. It actually takes longer to rotate on its axis (89 days) than it takes to orbit the sun.