Why does copper not replace hydrogen fro...

Why does copper not replace hydrogen from acids ?

Text Solution

Verified by Experts

Due to the `+ve E^(0)` value of copper (i.e., Cu lies below hydrogen in the electrochemical series), copper can not replace hydrogen from acids.

Doubtnut Promotions Banner Desktop Dark

Doubtnut Promotions Banner Mobile Dark

|

Topper's Solved these Questions

D - AND F - BLOCK ELEMENTS
CHHAYA PUBLICATION|Exercise SOLVED NCERT EXEMPLAR PROBLEMS (Assertion-Reason Type)|5 Videos
D - AND F - BLOCK ELEMENTS
CHHAYA PUBLICATION|Exercise SOLVED NCERT EXEMPLAR PROBLEMS (Long Answer Type)|16 Videos
D - AND F - BLOCK ELEMENTS
CHHAYA PUBLICATION|Exercise SOLVED NCERT EXEMPLAR PROBLEMS (Multiple Choice Question)|31 Videos
COORDINATION COMPOUNDS OR COMPLEX COMPOUNDS
CHHAYA PUBLICATION|Exercise PRACTICE SET 21|2 Videos
ELECTROCHEMISTRY
CHHAYA PUBLICATION|Exercise PRACTICE SET 4(Answer the following questions)|14 Videos

Similar Questions

Explore conceptually related problems

Name two metals which can replace hydrogen from acid.

Why can't copper replace H_(2) from an acid solution ?

Knowledge Check

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

A

`Ca`

B

`Al`

C

`Zn`

D

`Hg`

Assertion (A) : Cu cannot liberate hydrogen from acids. Reason (R ) : It positive electrode potential.

A

both (A) and (R ) are true, and (R ) is the correct explanation of (A).

B

both (A) and (R ) are true, but (R ) is not the correct explanation of (A).

C

(A) is false but (R ) is true.

D

(A) and (R ) both are false.

Similar Questions

Explore conceptually related problems

Zinc replaces hydrogen from acid solution and hydrogen produces silver form silver salts. Explain.

Why does sky appear blue?

Why will copper and HCl(aq) not evolve Hydrogen gas?

Maximum number of replacable hydrogen atom in B_2H_6 .

Explain why the dipole moment values of hydrogen halides decrease from H-F to H-I.

Copper is extracted from

CHHAYA PUBLICATION-D - AND F - BLOCK ELEMENTS -SOLVED NCERT EXEMPLAR PROBLEMS (Short Answer Type)

Why does copper not replace hydrogen from acids ?
07:15
|
Why E^(0) values for Mn, Ni and Zn are more negative than expected ?
04:09
|
Why first ionisation enthalpy of Cr is lower than that of Zn ?
03:36
|
Transition elements show high melting points. Why ?
03:04
|
When Cu^(2+) ion is treated with KI, a white precipitate is formed. Ex...
01:45
|
Out of Cu(2)Cl(2) and CuCl(2), which is more stable and why ?
02:29
|
When a brown compound of manganese (A) is treated with HCl it gives a ...
02:07
|
Although fluorine is more electronegative than oxygen, but the ability...
03:37
|
Although Cr^(3+) and Co^(2+) ions have same number of unpaired electro...
04:50
|
Ionisation enthalpies of Ce, Pr and Nd are higher than Th, Pa and U. W...
03:52
|
Although Zr belongs to 4d and Hf belongs to 5d transition series but i...
04:34
|
Although +3 oxidation state is the characteristic oxidation state of l...
02:54
|
Explain why does the colour of KMnO(4) disappear when oxalic acid is a...
02:10
|
When orange solution containing Cr(2)O(7)^(2-) ion is treated with an ...
04:59
|
A solution of KMnO(4) on reduction yields either a colourless solution...
03:41
|
The second and third rows of transition elements resemble each other m...
04:02
|
E^(0) of Cu is +0.34 V while that of Zn is -0.76V. Explain.
08:16
|
The halides of transition elements become more covalent with increasin...
02:53
|
While filling up of electrons in the atomic orbitals, the 4s-orbital i...
05:23
|
Reactivity of transition elements decreases almost regularly from Sc t...
06:09
|