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For the four successive transition eleme...

For the four successive transition elements (Cr, Mn, Fe, and Co), the stability of `+2` oxidation state will be there in which of the following order ?
`(At. Nos. Cr = 24, Mn = 25, Fe = 26, Co = 27)`

A

`CrgtMngtCogtFegt`

B

`MngtFegtCrgtCo`

C

`FegtMngtCogtCr`

D

`CogtMngtFegtCr`

Text Solution

Verified by Experts

The correct Answer is:
B
The correct order is
`MngtFegtCrgtCo`
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Explore conceptually related problems

Which one of the following complexes? [Atomic numbers, Mn=25, Fe = 26, Co = 27, Ni = 28]

The pair having the same magnetic moment is [at. No. Cr = 24, Mn = 25, Fe = 26 " and " Co = 27]

Magnetic moment 2.83 BM is given by which of the following ions? "At. nos. Ti=22, Cr=24, Mn=25,Ni=28"

The complex ion which has no ""d"" electrons in the central atom is (at. Cr=24, Mn=25, Fe=26,Co=27)

Which one of the cyano complexes would exhibit the lowest value of para magnetic behaviour ? (At. No. Cr = 24, Mn = 25, Fe = 26, Co = 27)

Knowledge Check

  • Which one of the following complexes? [Atomic numbers, Mn=25, Fe = 26, Co = 27, Ni = 28]

    A
    `[Fe(CN)_(6)]^(4-)`
    B
    `[Mn(CN)_(6)]^(4-)`
    C
    `[Co(NH_(3))_(6)]^(3+)`
    D
    `[Ni(NH_(3))_(6)]^(2+)`

  • The pair having the same magnetic moment is : [At. No. : Cr = 24 , Mn= 25 , Fe=26 , Co=27]

    A
    `[Mn(H_2 O)_6]^(2+) and [Cr(H_2 O)_6]^(2+)`
    B
    `[Co(Cl_4]^(2-) and [Fe(H_2 O)_6]^(2+)`
    C
    `[Cr(H_2 O)_6]^(2+) and [CoCl_4]^(2-)`
    D
    `[Cr(H_2 O)_6]^(2+) and [Fe(H_2 O)_6]^(2+)`

  • Magnetic moment 2.83 BM is given by which of the following ions? "At. nos. Ti=22, Cr=24, Mn=25,Ni=28"

    A
    `Mn^(2+)`
    B
    `Cr^(3+)`
    C
    `Ni^(2+)`
    D
    `Mn^(4+) and O_(2)`
    • MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-D - AND F-BLOCK ELEMENTS-Practice exercise (Exercise 1)
    1. For the four successive transition elements (Cr, Mn, Fe, and Co), the ...

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    2. The colour of zinc sulphide is

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    3. Which of the following element does not belong to 4d series of transit...

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    4. Number of unpaired electrons in Mn^(3+) is

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    5. Which of the following is red in colour?

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    6. Copper exhibits only +2 oxidation state in its stable compounds. Why?

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    7. A transition element X has a configuration [Ar] 3d^(4) in its + 3 oxi...

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    8. Which of the following ions has a magnetic moment of 5.93 BM? (Atomic ...

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    9. Which of the 3d-seres of the transition metals exhibits the largest nu...

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    10. Consider the following statements about transition metals.

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    11. Spin-only' formula to calculate magnetic moment is expressed as

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    12. Among the given optins the most dense element is

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    13. Which of the following is colourless?

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    14. Atomic number of an element is 26. the element shows

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    15. Which of the following species is/are paramagnetic? Fe^(2+),Zn^(0),H...

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    16. What is the correct roder of spin only magnetic moment (in BM) of Mn^(...

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    17. The coordination number in a/an….. Complex may increase to 8.

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    18. The spin only magnetic moment of Mn^(4+) ion is nearly

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    19. Mercury is a liquid metal because

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    20. The highest oxidation state exhibited by a transition metal is

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