Question:
Which of the following reaction is not an example of hydrolysis reaction?
Which of the following reaction is not an example of hydrolysis reaction?
Show Hint
Hydrolysis generally involves breaking of bonds by reaction with water molecules.
Updated On: Jun 25, 2026
- \[ P_4O_{10}+6H_2O\rightarrow 4H_3PO_4 \]
- \[ Mg_3N_2+3H_2O\rightarrow 3Mg(OH)_2+2NH_3 \]
- \[ SiCl_4+2H_2O\rightarrow SiO_2+4HCl \]
- \[ 2F_2+2H_2O\rightarrow 4HF+O_2 \]
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The Correct Option is D
Solution and Explanation
Step 1: Understand hydrolysis reaction.
Hydrolysis is a reaction in which a compound reacts with water and undergoes decomposition.
Step 2: Analyze option (1).
\[ P_4O_{10}+6H_2O\rightarrow 4H_3PO_4 \] Here phosphorus pentoxide reacts with water to form phosphoric acid.
This is a hydrolysis reaction.
Step 3: Analyze option (2).
\[ Mg_3N_2+3H_2O\rightarrow 3Mg(OH)_2+2NH_3 \] Magnesium nitride reacts with water producing magnesium hydroxide and ammonia.
This is hydrolysis.
Step 4: Analyze option (3).
\[ SiCl_4+2H_2O\rightarrow SiO_2+4HCl \] Silicon tetrachloride reacts with water and gets hydrolyzed.
Hence, this is also hydrolysis.
Step 5: Analyze option (4).
\[ 2F_2+2H_2O\rightarrow 4HF+O_2 \] This is an oxidation-reduction reaction because fluorine oxidizes water to oxygen.
It is not a hydrolysis reaction.
Step 6: Final conclusion.
Hence, the reaction which is not hydrolysis is \[ \boxed{ 2F_2+2H_2O\rightarrow 4HF+O_2 } \]
Hydrolysis is a reaction in which a compound reacts with water and undergoes decomposition.
Step 2: Analyze option (1).
\[ P_4O_{10}+6H_2O\rightarrow 4H_3PO_4 \] Here phosphorus pentoxide reacts with water to form phosphoric acid.
This is a hydrolysis reaction.
Step 3: Analyze option (2).
\[ Mg_3N_2+3H_2O\rightarrow 3Mg(OH)_2+2NH_3 \] Magnesium nitride reacts with water producing magnesium hydroxide and ammonia.
This is hydrolysis.
Step 4: Analyze option (3).
\[ SiCl_4+2H_2O\rightarrow SiO_2+4HCl \] Silicon tetrachloride reacts with water and gets hydrolyzed.
Hence, this is also hydrolysis.
Step 5: Analyze option (4).
\[ 2F_2+2H_2O\rightarrow 4HF+O_2 \] This is an oxidation-reduction reaction because fluorine oxidizes water to oxygen.
It is not a hydrolysis reaction.
Step 6: Final conclusion.
Hence, the reaction which is not hydrolysis is \[ \boxed{ 2F_2+2H_2O\rightarrow 4HF+O_2 } \]
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