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Green Chemistry Quiz for St. Patrick’s Day

Which of the following are green?St._Patricks_Day_Chemistry_Quiz.jpg

  • 510 nm or 600 nm
  • bromothymol blue in a basic solution or a neutral solution
  • copper(II) chloride dihydrate or copper(II) oxide
  • chlorophyll or carotene
  • BaCl2 salt or CaCl2 salt in fireworks
  • flame test for boron or sodium
  • hematite or malachite
  • Al2O3, with Cr3+ replacing a few Al3+ in octahedral sites or Be3Al2(SiO3)6, Cr3+ replacing a few Al3+ in octahedral sites

Answers