ETEA RECONDUCTED PAPER 2023

1. When an element occurs in different physical forms it is called _____ .

 
 
 
 

2. What mass of CaCO3 give 48.8 liters (measured at STP) of CO2 on strong heating

 
 
 
 

3. What is the reason of small atomic radii of sodium ions as compared to sodium atoms

 
 
 
 

4. What Is the radius of 3rd orbit of electron of H-atom

 
 
 
 

5. What is the other name of positive rays

 
 
 
 

6. What is the magnetic quantum number for S-orbital

 
 
 
 

7. The volume of a fixed mass of gas is directly proportional to absolute temperature and constant pressure as stated by:

 
 
 
 

8. The tautomer of propanol is

 
 
 
 

9. The substituent attached to the benzene ring that act as ring deactivator is

 
 
 
 

10. The specific heat of water is

 
 
 
 

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