<prompt> VDRL test for diagnosis of syphilis is an example forPrecipitation testAgglutinationImmunofluorescenceFlocculation  <response>: VDRL- Flocculation test Though flocculation also is a type of precipitation, flocculation is ideal for VDRL In which floccules are suspended after formation of antigen-antibody complex Ref: Textbook of Microbiology Baveja 5th ed Pg 120 