A substance which can act both as an antiseptic and disinfectant is:

aspirin

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chloroxylenol

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bithional

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phenol

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Solution

The correct option is D phenol
Phenol can act both as an antiseptic $(0.2 %)$ as well as a disinfectant $(1 %)$ .

It is active against a wide range of micro-organisms including some fungi and viruses but is only slowly effective against spores. It reduces the surface tension and shows high bactericidal activity.

Hence, option D is correct.

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