<prompt> Gray hepatization of lungs is seen on day ?13-Feb5-Mar7-May  <response>: Ans. is d i.e., 5-7 All 4 phases may be seen in different pas of the same lung 1 Congestion 1-2 days 2 Red hepatization 2d-4h day 3 Gray hepatization 5h-8h day 4 Resolution 8th-9th day 