The Question is from neet-botany , and it was created by the author B VENKAT

Question

Which of the following is NOT a product of the decomposition of hydrogen peroxide ($H_2O_2$) in the presence of a catalyst like manganese dioxide ($MnO_2$)?

B VENKAT · Accepted Answer

## CORE INFORMATION
✓ **Answer**: C
## CONCEPT FRAMEWORK
 **Primary Concept**: Decomposition reactions and catalysis
 **Related Topics**: Chemical equations, stoichiometry
 **Prerequisites**: Understanding of chemical reactions, catalysts, and balancing chemical equations.
## SOLUTION PATHWAY
**Given Information**:
  The decomposition of hydrogen peroxide ($H_2O_2$) in the presence of a catalyst ($MnO_2$).
  The options are water ($H_2O$), oxygen ($O_2$), hydrogen ($H_2$), and both water and oxygen.
**Method & Steps**:
 1. Write the balanced chemical equation for the decomposition of hydrogen peroxide.
  Reasoning: The decomposition of hydrogen peroxide produces water and oxygen gas.
  Formula/Rule: $2H_2O_2(l) \overset{MnO_2}{\longrightarrow} 2H_2O(l) + O_2(g)$
 2. Analyze the products of the reaction.
  Working: The balanced equation shows that the only products are water ($H_2O$) and oxygen ($O_2$).
  Key Point:  Manganese dioxide ($MnO_2$) acts as a catalyst; it speeds up the reaction but is not consumed in the process.
 3. Identify the option that is NOT a product.
  Result: Hydrogen ($H_2$) is not a product of this decomposition reaction.
  Verification: The balanced chemical equation confirms that only water and oxygen are formed.
 ## OPTION ANALYSIS
A ✓: Water ($H_2O$) is a product of the decomposition of hydrogen peroxide.
B :x: Oxygen ($O_2$) is a product of the decomposition of hydrogen peroxide.
C :x: Hydrogen ($H_2$) is NOT a product of the decomposition of hydrogen peroxide.  This is the correct answer.
D :x: Both water and oxygen are products of the decomposition of hydrogen peroxide.
 ## LEARNING AIDS
 **Common Mistakes**:
  1.Forgetting to balance the chemical equation: This can lead to incorrect product ratios.
  How to avoid: Always balance chemical equations before analyzing the products.
  2.Confusing catalysis with a reactant: Catalysts are not consumed in the reaction.
  How to avoid: Understand the role of a catalyst in a reaction.
 **Quick Tips**:
  1.Remember the general decomposition reaction of hydrogen peroxide: $2H_2O_2 \longrightarrow 2H_2O + O_2$
  2.Visualize the reaction: Hydrogen peroxide breaks down into smaller molecules of water and oxygen.

B VENKAT · Answer

Water ($H_2O$)

B VENKAT · Answer

Oxygen ($O_2$)

B VENKAT · Answer

The correct Option is "Hydrogen ($H_2$)"

B VENKAT · Answer

Both Water and Oxygen

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