What is the collective name of gases and liquids Share with your friends Share 0 Sakshi answered this the collective name of gases and liquids is known as fluid 2 View Full Answer divkaran.narang... answered this they are known as Drag . 0 Pradeep Ch answered this they are known as fluids as they posses the quality of flowing as they intermoleculer forces (attraction is weak and repulsion is strong) allow them to flow easily. hope it helps!!cheers@@!!! 0