DIVE INTO THIS BALMY SUMMERTIME SPELLING QUIZ
Do you often fall under the spell of the summer season? See if you can really spell your way through it with this quiz of popular summertime words.
Question 1 of 12
Definition for orange iii (2 of 2)
an orange-yellow, slightly water-soluble powder, C14H14N3NaO3S, used chiefly as an acid-base indicator.
Also called gold orange, helianthine B, orange III, tropaeolin D, tropeolin D.
Compare methyl red.
Origin of methyl orange
First recorded in 1880–85
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020