Science

4,167 questions

Leaderboard

Nobody has played this category yet.

Hardest questions

  1. Oxygen "always" has an oxidation number of -2. But there are several exceptions. is has an oxidation number of +2 in the compound: 1307
  2. An appendectomy is a medical procedure to remove: 1281
  3. Fructose is a Ketohexose and Glucose is a(n): 1280
  4. Another name for a visceral muscle is a: 1280
  5. The most abundant chemical element in the universe is: 1279
  6. The chemical ____________ is named after a sprite in german folklore. 1277
  7. 18th century Swedish scientist Carl Linnaeus is sometimes called the father of modern: 1272
  8. In 1952, Selman Waksman won the Nobel Prize in Physiology or Medicine for the discovery of streptomycin, the first antibiotic effective against which disease? 1268
  9. An animal that undergoes embryonic development inside a mother's body but has no access to her circulatory system is: 1268
  10. On the Periodic Table, there are a total of: 1267