Last Updated
：2025/11/21
Fehling's solution
Noun
countable
uncountable
Japanese Meaning
アルカリ性の硫酸銅溶液で、アルデヒドや還元糖の存在下で青色から赤色に変化する化学試薬
（ plural ）
Quizzes for review
(chemistry) An alkaline solution of copper sulphate which changes from blue to red in the presence of an aldehyde or a reducing sugar.
音声機能が動作しない場合はこちらをご確認ください
See correct answer
Fehling's solution
When mixed with a reducing sugar, Fehling's solution turns from blue to a brick-red precipitate, confirming the presence of an aldehyde.
See correct answer
When mixed with a reducing sugar, Fehling's solution turns from blue to a brick-red precipitate, confirming the presence of an aldehyde.
音声機能が動作しない場合はこちらをご確認ください
English - English
Word Edit Setting
- Users who have edit permission for words - All Users
- Screen new word creation
- Screen word edits
- Screen word deletion
- Screen the creation of new headword that may be duplicates
- Screen changing entry name
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Sentence Edit Setting
- Users who have edit permission for sentences - All Users
- Screen sentence deletion
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Quiz Edit Setting
- Users who have edit permission for quizzes - All Users
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
