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Why does copper not replace hydrogen fro...

Why does copper not replace hydrogen from acids?

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Copper has positive `E^Theta` value
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Explore conceptually related problems

Why does not copper liberate hydrogen from acids. ?

(a) Can combination reaction be an oxidation reaction ? (b) How will you test whether the gas evolved in a reaction is hydrogen ? (c) Why does copper not evolve hydrogen on reacting with dilute sulphuric acid ?

The metal that does not displace hydrogen from dilute acids is

The metal that does not displace hydrogen from an acid is

Which of the following metals does not liberate hydrogen from acids?

Explain why silver does not displace hydrogen from a dilute acid solution .

Why is it that non-metals do not displace hydrogen from dilute acids?

Explain why metals replace hydrogen from acids, whereas nonmetals do not.

Knowledge Check

  • Assertion: Copper cannot displace hydrogen from acids. Reason: It lies above hydrogen in the reactivity series.

    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.

  • The metal that does not displace hydrogen from dilute acids is

    A
    Fe
    B
    Na
    C
    Cu
    D
    Zn

  • The metal that does not displace hydrogen from an acid is

    A
    Hg
    B
    Zn
    C
    Ca
    D
    Al
    • MODERN PUBLICATION-D AND F-BLOCK ELEMENTS-NCERT FILE (EXEMPLAR PROBLEM (SHORT TYPE QUESTION))
    1. Why does copper not replace hydrogen from acids?

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    2. Why E^(-) values for Mn, Ni and Zn are more negative than expected?

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    3. Why first ionisation enthalpy of Cr is lower than that of Zn?

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    4. Transition elements show high melting points. Why?

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    5. When Cu^(2+) ion is treated with KI, a white precipitate is formed. Ex...

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    6. Out of Cu(2)Cl(2) and CuCl(2), which is more stable and why?

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    7. When a brown compound of manganese (A) is treated with HCl it gives a ...

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    8. Although fluorine is more electronegative than oxygen, but the ability...

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    9. Although Cr^(3+) and Co^(2+) ions have same number of unpaired electro...

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    10. Ionisation enthalpies of Ce, Pr and Nd are higher than Th, Pa and U. W...

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    11. Although Zr belongs to 4d and Hf belongs to 5d transition series but i...

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    12. Although +3 oxidation stae is thje characteristic oxidation state of ...

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    13. Explain why does colour of KMnO(4) disappear when oxalic acid is added...

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    14. When orange solution containing Cr(2)O(7)^(2-) ion is treated with an ...

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    15. A solution of KMnO(4) on reduction yields either a colourless solution...

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    16. The second and third rows of transition elements resemble each other m...

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    17. E^(Theta) of Cu is +0.34V while that of Zn is -0.76 V. Explain.

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    18. The halides of transition elements become more covalent with increasin...

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    19. While filling up of electrons in the atomic orbitals, the 4s-orbital i...

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    20. Reactivity of transition element decreases almost regularly from Sc t...

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