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Which of the following is a chemical method of disinfection?

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+1 vote
in Environmental Engineering by (81.4k points)
Which of the following is a chemical method of disinfection?

(a) Disinfection by heat

(b) Disinfection by light

(c) Metal ions

(d) Metal ions, Alkalis and acids

The question was asked during an interview.

The origin of the question is Methods of Disinfection in division Properties of Disinfection of Environmental Engineering

1 Answer

+2 votes
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Best answer
Right option is (d) Metal ions, Alkalis and acids

The explanation: Disinfection by heat and light are physical methods of disinfection whereas metal ions, alkalis and acids are chemical methods of disinfection.

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