distinguish between sterilizer a disinfectant a sanitizer and an antiseptics?

Answer 1

Sterilizer - an apparatus for rendering objects aseptic (free of pathogenic microorganisms).

Disinfectant - an agent, such as heat, radiation, or a chemical, that destroys, neutralizes, or inhibits the growth of disease-carrying microorganisms.

Satinizer - disinfectant formulated to clean food-processing equipment and dairy and eating utensils.

Antiseptic - a substance that inhibits the growth and reproduction of disease-causing microorganisms.