Multiple choice general knowledge

Which of the following spellings is correct?

  1. flurescent

  2. fluoorescent

  3. fluorecent

  4. fluorescent
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

'Fluorescent' derives from 'fluorine' (fluor-) + '-rescent'. The 'uo' spelling comes from the element name. Option A uses 'u' instead, option B doubles the 'o', and option C omits a vowel.

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