If 5% w/v concentration of a bactericide of dilution coefficient of 3 takes 25 minutes to effect killing, what will be the time of kill when it is diluted 8 times A sanitizer with dilution coefficient of 0.5 takes 3 minutes to effect killing. If it takes 18 minutes to kill when it is diluted 5times, what is the initial concentration? An unknown concentration of ‘LD’ disinfectant killed 106 viable cells of Sporotrichum schenkii within a certain time. When the concentration was increased 2-fold the extinction time decreased a 103-fold. Determine the concentration exponent of this disinfectant

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