CHEMISTRY ONE LINER SET 16

CHEMISTRY ONE LINER SET 16

1. A temperature difference of 25°C is equivalent to a temperature difference of
howmany F?
45° F
 
2. A deuterium nucleus consists of which particles? One proton and one
neutron
 
3. How many moles are there in 140 g of Si (atomic mass of silicon is 28)? 5
 
4. Which is used in storage batteries? Lead
 
5. An element X forms an oxide X03. 6
 
6. Which polymeric material is used for making bullet proof jacket? KEVLAR
 
7. Which is the main ingredient in cement? Lime stone
 
8. Which elementis produced when concentrated cinnabar is roasted in the excess of air?
Hg
 
9. Which nuclides having the same number of neutrons but different number of
protons or mass number?
Isotones
 
10. Which compound is known as white vitriol? ZnSO4 .7H2O