Can you jump start a 2ltr car battery with jumper cables connected to 1.2ltr battery?

Yes, it is possible to jump-start a vehicle with a larger battery using jumper cables connected to another vehicle with a smaller battery. While a smaller battery might not carry the same power reserve as a larger one, as long as both vehicles batteries are compatible(usually of the same voltage rating)and the jump-starting procedure is followed correctly, it should provide enough power to start the 2ltr car