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TRENDS IN THE E(M^(+3)//M^(+2)) VALUES O...

TRENDS IN THE `E_(M^(+3)//M^(+2))` VALUES OF 3d SERIES

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The correct Answer is:
T
TRUE
`E=E^(c-)-(0.0591)/(n)log.(1)/([M^(n+)])`
`=E^(c-)+(0.0591)/(n)[M^(+n)]`
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Consider the following statements is / are. (i)Sc has a low value of E_((M^(3+)//M^(2+)))^(ɵ) . (ii) Zn has the highest value of E_((M^(3+)//M^(2+)))^(ɵ) . (iii) Mn and Fe have comparatively high and low values respectively. The correct set of statements is/are (choose the appropriate option)

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)

E_(M^(3+)//(M))^(@) = -0.036V , E_(M^(2+)//M)^(@)= -0.439V . The value of standard electrode potential for the change, M^(3+)(aq) + e^(-)rightarrow M^(2+) (aq) will be :

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The dissociation constant of [M (NH_(3))_(2)]^(+) complex into M^(+) and Ammonia is 1xx10^(-17) . The standard reduction poential of the same metal electrode [E_(M^(+),M)^(@)] is 1.02 V . Hence E^(@) of the half cell reaction : [M(NH_(3))_(2)]^(+)+e^(-)rarrM(s)+2NH_(3) is found to be chi xx 10^(-2) . Express the value of x to the nearest integer ? (Given R = 8.3 and 2.3 log x = log_(e )x )__

Knowledge Check

  • Consider the following statements is / are. (i)Sc has a low value of E_((M^(3+)//M^(2+)))^(ɵ) . (ii) Zn has the highest value of E_((M^(3+)//M^(2+)))^(ɵ) . (iii) Mn and Fe have comparatively high and low values respectively. The correct set of statements is/are (choose the appropriate option)

    A
    I and II
    B
    II and II
    C
    I and III
    D
    I,II and III

  • The E_(M^(3+)//M^(2+))^(@) value of cr , Mn Fe and Co are - 0.41, +1.57,+0.77 and +1.97v for which metal change in oxidation state from +2 to + 3 is easiest .

    A
    Cr
    B
    Mn
    C
    Fe
    D
    Co

  • E_(M^(3+)//(M))^(@) = -0.036V , E_(M^(2+)//M)^(@)= -0.439V . The value of standard electrode potential for the change, M^(3+)(aq) + e^(-)rightarrow M^(2+) (aq) will be :

    A
    `(-0.072V)`
    B
    `(0.385V)`
    C
    `(0.770V)`
    D
    `0.270V`
    • CENGAGE CHEMISTRY-ELECTROCHEMISTRY-Archieves True/False
    1. TRENDS IN THE E(M^(+3)//M^(+2)) VALUES OF 3d SERIES

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