Explain antiseptics and disinfectants. 

What is the difference between antiseptics and disinfectants?

Name a substance which can be used as an antiseptic as well disindectant.

Which of the following substance may be used as antiseptic as well as disinfectant

(A) A 0.2% solution of phenol is antiseptic while one percent solution is a disin-fectant. (R) Same substance can act as an antiseptic as well as disinfectant by varying the concentration.

How do antiseptics differ from disinfectants?Does the same substance be used used as both?Give one example for each.

Explain ETS.

Explain rancidity.

Explain enthalpy.