<prompt> The amount of bleaching powder necessary to disinfect choleric stools, is-50gmlit75 gmlit90 gmit100 gm lit  <response>: Bleaching powder or chlorinated lime is a white amorphous powder with a pungent smell of chlorine. It kills most of the organisms when used in a strength of 1 to 3 percent. A 5 percent solution is suitable for the disinfection of feces and urine allowing a period of one hour. Ref: 25th edition, Parks Textbook of Preventive and Social Medicine, Page no. 141 