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Olympiad workbookNSECChemical Kinetics

Viruses are nonliving complex chemical entities. They undergo inactivation and hence lose the ability to infect a host, with time. Concentration (expressed as 'median tissue culture infectious dose', TCID/ml, a unit used in expressing virus concentrations) vs. time plots of a corona virus on the surfaces of a paper currency note and a plastic currency note are shown below. Both these plots have two separate regions (

Options

  1. AInactivation of the virus follows zero order kinetics in 1^ st zone and first order kinetics in 2^ nd zone
  2. BThe rate of inactivation is independent of the surface material
  3. CThe virus reacts with different chemical entities/substances in 1^ st zone and 2^ nd zone
  4. DOn both the surfaces, at least 95 % of the virus is inactivated within 10 h

Correct answer

D. On both the surfaces, at least 95 % of the virus is inactivated within 10 h

Step-by-step solution

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