Can you tell me how disinfectants kill bacteria?

Disinfectants. Disinfectants, such as bleach, will react chemically with microbial cells to destroy them. There are chemical reactions that occur that interfere with the germs' proteins, outer layers (membranes) or other parts of the microbe. This kind of brutal damage will kill the germs effectively. The good news, is that the range of different germs killed by bleach and other disinfectants is very wide.