CHEMISTRY ONE LINER SET 12

CHEMISTRY ONE LINER SET 12

1. How does Transfer of heat energy from the sun to the moon take place? By radiation only
 
2. Which is an active component of oil of clove? Eugenol
 
3. In methane molecule how are the four hydrogen atoms arranged? As tetrahedral
 
4. What are Rubies and Sapphires chemically known as? Aluminium oxide
 
5. Which pair of metals constitutes the lightest metal and the heaviest metal,
respectively?
Lithium and osmium
 
6. Energy transferred to a person through gamma rays is measured in by which unit?
Roentgens
 
7. Which element has the lowest electron affinity? Argon
 
8. What does the emission of ß-particle? Increases the atomic number by one
 
9. A fruity smell is obtained by the reaction of ethanol with which compound? CH3COOH
 
10. Which gas do not considered as polluting agent of air? CO2