Question

Consider the following redox equation: 02 + CH4 → H20+ CO2. Choose an appropriate chemical formula from the list that identifies the oxidizing agent. 02 O CO2 CH4 H20 Question 39 Which of the following reactions is a non-redox reaction? CaO + H2O = Ca(OH)2 2 H, 02H2 + O2 2 SO2 + O2 → 2 303 2KCIO3 2KCI + 3 02

Answer 1

Following is the - complete Answer -&- Explanation: for the given: Questions: in.....typed format...

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$\Rightarrow$Question: 38 : ( i.e. Question related with CH₄ )

$\Rightarrow$Answer:

Option: (a): O₂ ( is the Oxidizing agent of the reaction )

$\Rightarrow$Explanation:

• Step - 1:

In acidic medium, we can form the following Oxidation, and Reduction, reactions, by adding which, we would get the desired balanced reaction:

Type of Rxn.	Balanced Rxn.	Eq. ID
Oxidation	CH4 + 2H2O $\rightarrow$ CO2 + 8e- + 8H+	Eq. (1)
Reduction	2O2 + 8e- + 8H+ $\rightarrow$ 4H2O	Eq.(2)
Overall	2O2 + CH4  $\rightarrow$  2H2O +  CO2	Eq.(1) + Eq(2) = Eq.(3)

• Step - 2:

​​​​​​​As we can see above, the compound:  O₂, gains electrons, and therefore in Eq. (2) gets reduced. Therefore, we can call O₂( oxygen ) to be the Oxidizing agent, of the reaction.

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$\Rightarrow$Question: (39):

$\Rightarrow$Answer:

Option- (a): CaO + H₂O  $\rightarrow$Ca(OH)₂  , is a non-redox reaction

$\Rightarrow$Explanation:

Since in the above reaction, no change of oxidation number , occurs with Ca, O, H elements, we can call this a Non - redox reaction.

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