Friday 10 August 2012

Did You Know?

  1. The smallest portion of an element is: Atom
  2. Effervescence means: Bubbly 
  3. Dyes in ink are separated by: Chromatography 
  4. One allotrope of carbon is: Diamond 
  5. A substance which cannot be split up into others is an: Element 
  6. The liquid which runs through a filter paper is the: Filtrate 
  7. A yellow, noble metal is: Gold 
  8. The element which gives violet vapor on heating is: Iodine 
  9. To find out if a liquid is an acid, use: Litmus 
  10. 6.02 X 10^23 number of atoms or molecules: Mole 
  11. 78% of the air we breathe is: Nitrogen 
  12. 21% of the air we breathe is: Oxygen 
  13. Green leaves of plants make starch by: Photosynthesis 
  14. There are two limes. Calcium oxide is: Quicklime 
  15. Taking oxygen from a substance is called: Reduction 
  16. A yellow non-metal is: Sulphur 
  17. To find out how strong an acid is, use: Universal indicator 
  18. In strong alkali Universal Indicator is: Violet 
  19. The colour of gold and sulphur is: Yellow 
  20. A more active metal than copper is: Zinc 
Courtesy: Randal L. Henly, Ireland Reference: CHEM13 News, February 1995

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