ferric chloride unspecified sense

William H. Ukers (author)

• caffetannic acid gives dark green coloration with ferric chloride
  assertsneutralsource: coffee-pg28500

  A dark green coloration is given with ferric chloride

  judge verdicts (2)

  • groundedness 1.00 pass — The claim is directly stated in the passage: 'A dark green coloration is given with ferric chloride' appears verbatim in the second paragraph describing the chemical reactions of caffetannic acid. This is fully supported without requiring outside knowledge or over-generalization.
  • qualifier_fidelity 1.00 pass — All qualifiers are faithful to the passage. The viewpoint is correctly attributed to the author (the passage states this as established fact without attributing to a named source). The stance is appropriately 'asserts' as the passage presents this as agreed-upon chemical knowledge. Sentiment is neutral, matching the passage's matter-of-fact tone. Time qualifiers are all null, which is correct since the passage provides no temporal information. Context is empty, which is appropriate as no specific sense or role restriction is mentioned. The quote is verbatim from the passage and directly supports the claim.