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Assertion: 2H2S((g)) + O( 2(g))to 2S((s...

Assertion: `2H_2S_((g)) + O_( 2(g))to 2S_((s)) + 2H_2O_ ((l))`
It is an oxidation reaction.
Reason:Oxidation is a process which involves removal of hydrogen

A

If both assertion and reason are time and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

AI Generated Solution

The correct Answer is:
To analyze the assertion and reason provided in the question, we will break down the chemical reaction and the definitions involved in oxidation. ### Step-by-Step Solution: 1. **Identify the Reaction**: The given reaction is: \[ 2H_2S_{(g)} + O_2_{(g)} \rightarrow 2S_{(s)} + 2H_2O_{(l)} \] Here, hydrogen sulfide (H₂S) reacts with oxygen (O₂) to produce sulfur (S) and water (H₂O). 2. **Determine Oxidation and Reduction**: - **Oxidation** is defined as the loss of electrons or an increase in oxidation state. In organic reactions, it often involves the removal of hydrogen or the addition of oxygen. - **Reduction** is the gain of electrons or a decrease in oxidation state, often involving the addition of hydrogen or the removal of oxygen. 3. **Analyze the Reactants and Products**: - In the reactant H₂S, sulfur has an oxidation state of -2. - In the product sulfur (S), the oxidation state is 0. - The change in oxidation state from -2 to 0 indicates that sulfur is being oxidized (losing electrons). 4. **Identify the Role of Oxygen**: - Oxygen (O₂) is being reduced in this reaction. The oxygen is gaining hydrogen from H₂S to form water (H₂O). - This means that while sulfur is being oxidized, oxygen is being reduced. 5. **Conclusion on Assertion and Reason**: - The assertion states that the reaction is an oxidation reaction, which is true because H₂S is losing hydrogen (and thus being oxidized). - The reason states that oxidation involves the removal of hydrogen, which is also true in this context. - Therefore, both the assertion and reason are correct. ### Final Answer: Both the assertion and reason are true. The reaction is indeed an oxidation reaction as it involves the removal of hydrogen from H₂S.
To analyze the assertion and reason provided in the question, we will break down the chemical reaction and the definitions involved in oxidation. ### Step-by-Step Solution: 1. **Identify the Reaction**: The given reaction is: \[ 2H_2S_{(g)} + O_2_{(g)} \rightarrow 2S_{(s)} + 2H_2O_{(l)} ...
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In the reaction 2H_(2)(g) + O_(2)(g) to 2H_(2)O(l), DeltaH = -x kJ

Diborane is potential rocket fuel which undergoes combustion according to the reaction, B_(2)H_(6(g))+3O_(2(g))rarr B_(2)O_(3(s))+3H_(2)O_((g)) from the following data, calculate the enthalpy change for the combustion of diborane , {:(2B_((s))+(3)/(2)O_(2(g))rarrB_(2)O_(3(g)),,,Delta H=-1273 kJ),(H_(2(g))+(1)/(2)O_(2(g))rarr H_(2)O_((l)),,,Delta H=-28 kJ),(" "H_(2)O_((l))rarr H_(2)O_((g)),,,Delta H=44 kJ),(2B_((S))+3H_(2)(g)rarr B_(2)H_(6(g)),,,Delta H=36 kJ):}

Knowledge Check

  • Assertion : 2H_(2)S_((g))+O_(2(g))to2S_((s))+2H_(2)O_((l)) . It is a redox reaction. Reason : Oxidation involves removal of hydrogen while reduction involves addition of hydrogen.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.

  • Assertion : CuO_((s))+H_(2(g))toCu_((s))+H_(2)O_((l)) . It is a redox reaction. Reason : In a redox reaction, reductant is reduced by accepting electrons and oxidant is oxidised by losing electrons.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.

  • 2H_(2)(g)+O_(2)(g)to2H_(2)O(l)+xkJ In the above reaction

    A
    `zkJ mol^(-1)` is the value of `DeltaH_(f)` for water
    B
    `DeltaH_(f)` of `H_(2)O(l)` is `-xkJ`
    C
    `DeltaH_(f)` of `H_(2)O(l)` is `-x//2kJ mol^(-1)`
    D
    `DeltaH_("comb")` of `H_(2)` is `-x//2kJ mol^(-1)`

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    Diborane is a potential rocket fuel which undergoes combustion according to the reaction: B_(2)H_(6)(g) + 3O_(2)(g) to B_(2)O_(3)(s) + 3H_(2)O(g) From the following data, calculate the enthalpy change for the combustion of diborane. 2B(s) + 3/2O_(2)(g) to B_(2)O_(3)(s) DeltaH = -1273 kJ "mol"^(-1) H_(2)(g) + 1/2O_(2)(g) to H_(2)O(l) DeltaH =-286 kJ "mol"^(-1) H_(2)O(l) to H_(2)O(g) DeltaH = 44 kJ "mol"^(-1) 2B(s) + 3H_(2)(g) to B_(2)H_(6)(g) DeltaH = 36 kJ "mol"^(-1) .

    Assertion : For the change, H_(2)O_((l))rarr H_(2)O_((s)),DeltaH=DeltaU . Reason : No enthalpy change is involved in this process.

    In the redox reaction H_2S (g) + Cl_2(g) to 2HCl (g) + S(s) oxidation of which substance take place ?

    The reaction of H_(2)S+H_(2)O_(2) rarr S+2H_(2)O manifests

    Assertion (A) Decomposition of H_(2)O_(2) is a disproportionation reaction. Reason (R ) H_(2)O_(2) molecule simultaneously undergoes oxidation and reduction.

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