Chemistry 1 - Answers

Published: Monday 22nd August 2011
  1. By what name is the mild disinfectant TRICHLOROPHENYLMETHYLDISALICYL better known? TCP.
  2. Which acid had the formula HNO3 and is known as Aqua Fortis? Nitric Acid.
  3. Discovered in 1950 and named after an American college, what element has the symbol Bk? Berkelium.
  4. What is ACETYLSALICYLIC ACID better known as? Aspirin.
  5. Having the formula C2H5OH, what is Ethanol the technical name for? Alcohol.
  6. What name is given to a compound that contains no water? Anhydrous.
  7. What colour does Litmus turn in acidic conditions? Red.
  8. Which acid has the formula H2SO4 and is known as Oil of Vitriol? Sulphuric Acid.
  9. What is the Atomic Number of Magnesium? 12
  10. How many carbon atoms are there in a Phenol molecule? Six.
  11. Which element gets its symbol from the Latin name Plumbum? Lead.
  12. Aluminium is principally extracted from which ore? Bauxite.
  13. What name is given to an alloy of Mercury? An amalgam.
  14. What is solid Carbon Dioxide better known as? Dry Ice.
  15. Of what is NaOH the chemical formula? Caustic Soda [Sodium Hydroxide].
  16. Which element has the symbol P? Phosphorus.
  17. Which metal melts at 30 degrees Centigrade? Gallium.
  18. Who discovered the electron? J J Thomson.
  19. Which element is used in the production of light sensitive film? Silver.
  20. With an atomic number of 86, which of the Inert gases is densest under standard conditions? Radon

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