Respuesta :
Answer: The correct answer is Option 1.
Explanation:
For the given options:
- Option 1: [tex]CH_4+2O_2\rightarrow CO_2+2H_2O[/tex]
This reaction is considered as combustion reaction and all the combustion reaction are redox reactions. In redox reaction, reduction and oxidation reactions occur simultaneously.
In this reaction, oxidation state of carbon is increasing from -4 to +4, so it is undergoing oxidation reaction and oxidation state of oxygen is decreasing from 0 to -2, so it is undergoing reduction reaction.
Thus, this is an oxidation-reduction reaction.
- Option 2: [tex]H_2SO_4+Ca(OH)_2\rightarrow CaSO_4+2H_2O[/tex]
This reaction is considered as a neutralization reaction because in this an acid is reacting with a base to produce a salt and water molecule.
Thus, this is not an oxidation-reduction reaction.
- Option 3: [tex]MgCrO_4+BaCl_2\rightarrow MgCl_2+BaCrO_4[/tex]
This reaction is considered as a double displacement reaction because here exchange of ions takes place.
Thus, this is not an oxidation-reduction reaction.
- Option 4: [tex]Zn(NO_3)_2+Na_2CO_3\rightarrow 2NaNO_3+ZnCO_3[/tex]
This reaction is considered as a double displacement reaction because here exchange of ions takes place.
Thus, this is not an oxidation-reduction reaction.
From the above information, the correct answer is Option 1.
The chemical reaction which represents an oxidation-reduction reaction is CH₄ + 2O₂ → CO₂ + 2H₂O.
What is redox reaction?
Redox reactions are those reactions in which oxidation and reduction reaction process takes place simultaneously.
- CH₄ + 2O₂ → CO₂ + 2H₂O
This reaction is the redox reaction as oxidation state of carbon is increasing from -4 to +4, due to oxidation reaction and oxidation state of oxygen is decreasing from 0 to -2, due to reduction reaction.
- H₂SO₄ + Ca(OH)₂ → CaSO₄ + 2H₂O
This is not a redox reaction as oxidation state of any atom does not changes.
- MgCrO₄ + BaCl₂ → MgCl₂ + BaCrO₄
This is also not a redox reaction as oxidation state of any atom does not changes.
- Zn(NO₃)₂ + Na₂CO₃ → 2NaNO₃ + ZnCO₃
This is also not a redox reaction as oxidation state of any atom does not changes.
Hence first given reaction is the combustion reaction and also represents redox reaction.
To know more about redox reaction, visit the below link:
https://brainly.com/question/26854093
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