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The atomic numbers of vandium (V). Chrom...

The atomic numbers of vandium `(V)`. Chromium `(Cr)`, manganese `(Mn)` and iron (Fe) respectively 23, 24,25 and 26. Which one of these may be expected to have the higher second ionization enthalpy ?

A

V

B

Cr

C

Mn

D

Fe

Text Solution

Verified by Experts

The correct Answer is:
B
`V=1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(3)4s^(2)`
`Cr=1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(5)4s^(1)`
`Mn=1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(5)4s^(2)`
`Fe=1s^(2)2s^(2)2p^(6)3s^(2)3p^(6)3d^(6)4s^(2)`
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ERRORLESS -D & P-BLOCK ELEMENTS-Critical Thinking
  1. The basic character fo the transition metal monoxides follows the orde...

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  2. Which of the following pairs of metals uis purified by van arkel meth...

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  3. Sulphur trioxide can be obtained by which of the following reactions :

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  4. In following reaction yMnO(4)^(-)+xH^(+)+C(2)O(4)^(2-)rarryMn^(++)+2...

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  5. The acidic, basic or amphoteric nature of Mn2O7, V2O5 and CrO are res...

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  6. What happens when aluminium and zinc salts react with an excess of NaO...

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  7. Which of the following ions form most stable complex compound

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  8. Which transition metal reduces steam to evolve hydrogen

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  9. General configuration of outermost and penultimate shell is (n - 1) s^...

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  10. Arrange Ce^(3+),La^(3+), Pm^(3) and Yb^(3+) in increasing order of the...

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  11. The atomic numbers of vandium (V). Chromium (Cr), manganese (Mn) and i...

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  12. Irregular trend in the standard reduction potential value of first row...

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  13. The correct order of increasing oxidising power in the series is

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  14. Mn^(2+) can be converted into Mn^(7+) by reacting with

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  15. An elements is in M^(3+) form. Its electronic configuration is [Ar]3d^...

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  16. Transition metal with low oxidation state will act as:

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  17. Which of the following is not an element.

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  18. Which of the following is more paramagnetic

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  19. Formula of thiosulphate, manganate and arsenate respectively are

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  20. Which of the following option is the correct order of the basic streng...

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