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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) rarr Cu + H_2O`

B

`Fe_(2)O_3 + 3CO rarr 2Fe + 3CO_2`

C

`2K + F_2 rarr 2KF`

D

`BaCl_(2) +H_2SO_4 rarr BaSO_4 + 2HCl`

Text Solution

Verified by Experts

The correct Answer is:
D
Following are the examples of redox reaction
(a) `CuO+H_2rarrCu+H_2O`
(b) `Fe_(2)O_(3) + 3CO rarr 2Fe +3CO_2`
(c) `2K +F_2 rarr 2KF`
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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)`
    • ERRORLESS-REDOX REACTIONS-NCERT BASED QUESTION (Oxidizing and Reducing Agent)
    1. Which of the following is not an example of redox reaction?

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    2. The ultimate product of oxidation of most of hydrogen and carbon in fo...

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    3. In the reaction 3Mg + N2 rarr Mg3N2

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    4. The conversion of sugar C(12)H(22)O(11) to CO(2) is :

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    5. Consider the following statements : In the chemical reaction (1) M...

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    6. H2O2 oxidises K4Fe(CN)6

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    7. When copper turnings are added to silver nitrate solution, a blue colo...

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    8. One gas bleaches the colour of flowers by reduction while the other by...

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    9. Which one of the following does not get oxidised by bromine water

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    10. Which of the following is not a redox reaction

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    11. Maximum number of moles of electrons taken up by one mole of NO(3)^(-)...

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    12. Which one of the following reactions is not an example of redox reacti...

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    13. In aqueous alkaline solution two electron reduction of HO(2)^(-) gives

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    14. White P reacts with caustic soda, the products are PH(3) and NaH(2)PO(...

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    15. In the following reaction 3Br(2)+6CO(3)^(2-)+3H(2)O to 5Br^(-)+BrO(3...

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    16. Which of the following is the most powerful oxidizing agent?

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    17. In the reaction HAsO(2)+Sn^(2+) rarr As+Sn^(4+)+H(2)O oxidising agen...

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    18. Thiosulphate reacts differently with iodine and bromine in the reactio...

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    19. Which of the following halides is not oxidised by M no2 ?

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    20. The oxidant which is used as an antiseptic is

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