PDF chapter test TRY NOW

Match the followings.
 
Answer variants:
Redox reaction
Boiling
\(H_2O\) + \(CO_2\)
\(N_2\)
  
Column I
Column II
\(C\) + \(O_2\) → \(CO_2\)
\(H_2CO_3\) \(\xrightarrow[]{Heat}\)