Home
Class 12
CHEMISTRY
The correct order of E(M^(2+)//M)^(@) Va...

The correct order of `E_(M^(2+)//M)^(@)` Values with negative sign for the four successive elements `Cr, Mn, Fe` and `Co` is:

A

CrgtMngtFegtCo

B

MngtCrgtFegtCo

C

CrgtFegtMngtCo

D

FegtMngtCrgtCo

Text Solution

Verified by Experts

The correct Answer is:
B
Order of standard reduction potential
`Mn gt Cr gt Fe gt Co`
(According to electrochemical series).
Promotional Banner

Similar Questions

Explore conceptually related problems

The correct order of E_(M^(+2)//M)^(@) value with negative sign for the four successive element Mn,Fe, Co and Ni

Which of the following represents the correct order of increasing electron gain enthalpy with negative sign for the elements O, S, F and Cl?

{:(E_(M^(2+)//M)^(@),Cr,Mn, Fe, Co, Ni, Cu),(,-0.91,-1.18,-0.44,-0.28,-0.25,+0.34):} From the given data of E^(@) values, answer the following questions : (i) Why is E_((Cu^(2+)//Cu))^(@) value exceptionally positive ? (ii) Why is E_((M^(2+)//M))^(@) vlue highly negative as compared to other elements ? (iii) Which is a stronger reducing agent , Cr^(2+) or Fe^(2+) ? Give reason.

Discuss the relative stability in aqueous solution of +2 oxidation states among the elements: Cr, Mn, Fe and Co

Give the decreasing order of E_((M^(3+))/(M^(2+))^(c-) Value for the following: (a). Co(Z=27) (b). Mn(Z=25) (c). Fe(Z=26) (d). Cr(Z=24)

Correct order of paramagnetism of tripositive cation of Cr, Mn, Fe, Co is :

Write the correct order of density for Zn,Fe,Co,Cr,Cu