Acids turn litmus paper red.

the verdict

SUPPORTED

the evidence backs this

Recorded sources

6 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that acids turn litmus paper red?

Yes. Multiple reference sources state that acids turn litmus paper red, including a science encyclopedia and a chemistry overview. A couple of philosophy texts also treat the statement as a defining proposition about acids.

Verdict: SUPPORTED · 6 sources for, 0 against · Last checked 17 Oct 2026

Evidence for · 6

Simple English Wikipedia: Litmus paper

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Simple English Wikipedia: Litmus paper. (n.d.). simple.wikipedia.org. https://simple.wikipedia.org/wiki/Litmus_paper

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More for · 5

The Routledge Handbook of Wittgenstein and Other Philosophers: Part 2

2026

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Khani, A. H. & Kemp, G. (2026). The Routledge Handbook of Wittgenstein and Other Philosophers: Part 2. play.google.com. https://play.google.com/store/books/details?id=YWkJEgAAQBAJ&source=gbs_api

Theory of Human Action

2015

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Goldman, A. I. (2015). Theory of Human Action. play.google.com. https://play.google.com/store/books/details?id=m3F9BgAAQBAJ&source=gbs_api

THE WORLD OF SCIENCE

1991

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Wright, M. A. J. D. R. J. J. M. J. M. B. R. f. S. W. M. S. D. (1991). THE WORLD OF SCIENCE. archive.org. https://archive.org/details/bwb_p8-agz-137_g4i5

PROTOLYC THEORY OF ACIDS AND BASES

2024

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PROTOLYC THEORY OF ACIDS AND BASES. (2024). doi.org. https://doi.org/10.5281/zenodo.10469282

thedorlingkindersleyscienceencyclopedia2

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thedorlingkindersleyscienceencyclopedia2. (n.d.). archive.org. https://archive.org/details/thedorlingkindersleyscienceencyclopedia2

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