Which type of chemical reaction occurs in $C _6 H _{12}+9 O _2 \rightarrow 6 CO _2+6 H _2 O$?
A. synthesis
B. combustion
C. single replacement
D. double replacement
Answer (2)
The reaction involves a hydrocarbon ( C 6 H 12 ) reacting with oxygen ( O 2 ).
The products are carbon dioxide ( C O 2 ) and water ( H 2 O ).
This type of reaction is characteristic of combustion.
Therefore, the correct answer is combustion: co mb u s t i o n .
Explanation
Analyzing the Reaction We are given the chemical reaction C 6 H 12 + 9 O 2 → 6 C O 2 + 6 H 2 O and asked to identify the type of reaction. The options are synthesis, combustion, single replacement, and double replacement. Let's analyze each type of reaction to determine the correct answer.
Eliminating Synthesis A synthesis reaction involves combining two or more reactants to form a single product. This is not the case here, as we have two products ( C O 2 and H 2 O ).
Identifying Combustion A combustion reaction involves the rapid reaction between a substance with an oxidant, usually oxygen, to produce heat and light. A common example is the burning of a hydrocarbon, which produces carbon dioxide and water. In our reaction, C 6 H 12 (a hydrocarbon) reacts with O 2 to produce C O 2 and H 2 O . This fits the definition of a combustion reaction.
Eliminating Single Replacement A single replacement reaction involves one element replacing another in a compound. This is not observed in the given reaction.
Eliminating Double Replacement A double replacement reaction involves the exchange of ions between two compounds. This is also not observed in the given reaction.
Conclusion Based on the analysis, the given reaction is a combustion reaction because a hydrocarbon ( C 6 H 12 ) reacts with oxygen to produce carbon dioxide and water.
Examples
Combustion reactions are essential in many aspects of our daily lives. For example, the burning of natural gas in a furnace to heat homes is a combustion reaction. Similarly, the burning of gasoline in a car engine is a combustion reaction that provides the energy to power the vehicle. Understanding combustion reactions helps us to efficiently use energy resources and design cleaner burning technologies.
The chemical reaction C 6 H 12 + 9 O 2 → 6 C O 2 + 6 H 2 O is classified as a combustion reaction because a hydrocarbon reacts with oxygen to produce carbon dioxide and water. The correct answer is combustion: co mb u s t i o n .
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