How did southern states attempt to limit the
rights of african americans after the civil
war? include specific examples (jim crow
laws, segregation, prevention of voting etc.)

The Southern States tried to limit the rights of African American by implementing the laws of Jim Crow. The laws separated the African American from the White by separating (segregating) restaurants, hospitals, school, and public services. Also banned them from voting and electing Government. It was the reaction to Reconstruction and to show the power of white supremacy in the South.    

the difference is that white collar worker performs skills like worker as a scientist or well blue collars do physical work and they do services like being a cook.

the second significant cause of the great migration was the desire of black southerners to escape segregation, known euphemistically as jim crow. rural african american southerners believed that segregation - and racism and prejudice against blacks - was significantly less intense in the north.