NUMS 2021 PAPER

1. Electron affinity decreases down the group due to:

 
 
 
 

2. It is impossible for two electrons to have same value of spin quantum number in the same orbital, according to:

 
 
 
 

3. Which one is least ionic

 
 
 
 

4. Diamond is:

 
 
 
 

5. Ideal gas equation is

 
 
 
 

6. How many moles of CO contain 16g of oxygen

 
 
 
 

7. Stoichiometry is:

 
 
 
 

8. What is the most common gas in the environment

 
 
 
 

9. Proton is how many times heavier than an electron

 
 
 
 

10. Which quantum number tells shape of the orbital

 
 
 
 

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