CHEMISTRY ONE LINER SET 15

CHEMISTRY ONE LINER SET 15

1. Which nuclear particles responsible for holding all nucleons together? Mesons
 
2. What is generally present in tonics? Ethanol
 
3. Which component of the atmosphere has increased during the last 200 years? Carbon dioxide
 
4. What does mixture of CS2 and H2S on passing over heated copper give? Methane
 
5. Of which metal were the tools and weapons of Harappan civilisation? Copper, tin and bronze
 
6. Which is associated with the formation of brown air in traffic congested cities? Nitrogen oxide
 
7. Balloons are filled with which gas? Helium
 
8. Which are the The best and the poorest conductors of heat respectively? Silver (Ag), and lead (Pb)
 
9. Which metal is not attacked by the environment? Gold
 
10. Which colloidal solution is used in photography? Colloidal silver bromite