Categorize the following according to their property:
  
 
Answer variants:
\(-CH_3\)
Tet-
\(R-OCOO-R\)
Non-
\(-OH\)
\(-C_2-CH_4\)
  
1. Class of compounds and its functional group:
 
Alcohol-
 
2. Root words of hydrocarbons:
  
\(9\) -
 
3. Prefix for IUPAC Name:
 
Methyl  -