Virus most sensitive to inactivation by biocides ?: (A) Adenovirus, (B) Herpes virus, (C) Parvovirus, (D) Poliovirus
Answer is B. Ans. is 'b' i.e., Herpes virus Enveloped viruses are most sensitive to inactivation by biocides. Among the given options only Herpesvirus is enveloped virus. Adenovirus, parvovirus and poliovirus (picornavirus) are non-enveloped viruses.