Find the correct name and condensed molecular formula for the given group of compounds:
  
 
Answer variants:
\(C_5H_5O_9Cl\)
Krypton
Ethanal
\(C_5H_{12}O\)
\(C_2H_4O\)
1- Methoxybutane
Fluorine
  
1. Ethers 
 
Name of the alkyne         Condensed formula
 
       -    
 
2. Aldehyde
 
Name of the alkyne        Condensed formula
 
       -