Statement 1 : Compressibility factor for hydrogen varies with pressure with positive slope at all pressures.

Statement 2 : Even at low pressures, repuslive forces dominate hydrogen gas.

In case of ${\mathrm{H}}_2,$ compressibility factor increases with the pressure. At 273K, Z > 1 which shows that it is difficult to compress the gas as compared to ideal gas. In this case repulsive forces dominate.