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Which of the following is not an example...

Which of the following is not an example of redox reaction?

A

CuO + `H_2`` to` Cu +`H_2O`

B

`Fe_2O_3 +3CO to 2Fe +3CO_2`

C

`2K + F_2 to 2KF`

D

`BaCl_2 + H_2SO_4 to BaSO_4 + 2HCl`

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Knowledge Check

  • Which of the following is an example of redox reaction ?

    A
    `XeF_(6)+H_(2)OrarrXeO_(2)F_(2)+4Hf`
    B
    `XeF_(6)+2H_(2)OrarrXeO_(2)F_(2)+4Hf`
    C
    `XeF_(4)+O_(2)F_(2)rarrXeF_(6)+O_(2)`
    D
    `XeF_(2)+PF_(5)rarr[XeF]^(+)PF_(6)^(-)`

  • Which of the following is an example of redox reaction ?

    A
    `XeF_(6)+H_(2)OrarrXeO_(2)F_(2)+4Hf`
    B
    `XeF_(6)+2H_(2)OrarrXeO_(2)F_(2)+4Hf`
    C
    `XeF_(4)+O_(2)F_(2)rarrXeF_(6)+O_(2)`
    D
    `XeF_(2)+PF_(5)rarr[XeF]^(+)PF_(6)^(-)`

  • Redox is a reaction in which both oxidation and reduction will take place simultaneously . It is obvious that if one substance gives electron there must be another substance to accept these electrons . In some reactions, same substance is reduced as well as oxidised, these reactions are termed as disproportionation reactions. For calculating equivalent mass in redox reaction change in oxidtaion number is realted to n-factor which is reciprocal of molar ratio. Which of the following is an example of redox reaction ?

    A
    `2NO_(2) to N_(2)O_(4)`
    B
    `NH_(4)OH to NH_(4)^(+) + OH^(-)`
    C
    `2NO_(2) + H_(2)O to HNO_(3) + HNO_(2)`
    D
    `N_(2)O_(5) +H_(2)O to 2HNO_(3)`

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