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