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The reaction H(2) + Cl(2) to 2HCl is a...

The reaction `H_(2) + Cl_(2) to 2HCl` is a

A

decomposition reaction

B

combination reaction

C

double displacement reaction

D

displacement reaction

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Identify the oxidising and reducing agent in the following reaction : H_(2)O + Cl_(2) to 2HCl + S

(a) Give an example for a combination reaction which is exothermic. (b) Identify the oxidising agent and reducing agent in the following reaction. H_(2)S + Cl_(2) to 2HCl + S (c) Name the phenomenon due to which the taste and smell of oily food changes when kept for a long time in open. Suggest one method to prevent it.

Knowledge Check

  • The DeltaH value of the reaction H_(2) + Cl_(2) hArr 2 HCl is -44.12 kcal . If E_(1) is the activation energy of the products , then for the above reaction

    A
    `E_(1) gt E_(2)`
    B
    `E_(1) lt E_(2)`
    C
    `E_(1) = E_(2)`
    D
    `DeltaH` is not related to `E_(1)` and `E_(2)`

  • Heat evolved in the reaction H_(2)+Cl_(2) rarr 2HCl is 182 kJ Bond energies H- H = 430 kJ/mole, Cl-Cl = 242kJ//"mole" . The H-Cl bond energy is

    A
    763 kJ/mole
    B
    427 kJ/mole
    C
    336 kJ/mole
    D
    154 kJ/mole

  • The Delta H value of the reaction H_(2)+Cl_(2) hArr 2HCl is -44.12 kcal. If E_(1) is the activation energy of the products then for the above reaction

    A
    `E_(1) gt E_(2)`
    B
    `E_(1) lt E_(2)`
    C
    `E_(1) = E_(2)`
    D
    `DeltaH` is not related to `E_(1)` and `E_(2)`

    • Similar Questions

    Explore conceptually related problems

    For the gaseous reaction, H_(2)+Cl_(2) to 2HCl . If 40 ml of hydrogen completely reacts with chlorine then find out the the required volume of chlorine and volume of produced of HCl?

    If S^(@) for H_(2),Cl_(2) and HCl are 0.13, 0.22 and 0.19 KJ K^(-1)mol^(-1) respectively. The total change in standard entropy for the reaction H_(2)+Cl_(2)rarr 2HCl is :-

    Given the following entropy values ( in JK^(-1) "mol"^(-1) ) at 298 K and 1 atm: H_(2)(g):130.6, Cl_(2)(g):223.0, HCl(g): 186.7 . The entropy change (in JK^(-1) "mol"^(-1) ) for the reaction H_(2)(g) + Cl_(2)(g) to 2HCl(g) , is

    If S^(@) for H_(2),Cl_(2) and HCL are 0.13, 0.22 and 0.19KJK^(-1)mol^(-1) respectively. The total change in standard entropy for the reaction H_(2)+Cl_(2)rarr2HCl is

    Assertion: The photochemical reaction H_(2) + Cl_(2) rarr 2HCl and H_(2) + Br_(2) rarr 2HBr have equal quantum efficiencies. Reason: Both the reaction proceed by different mechanism.

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