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The first ionisation energies of the ele...

The first ionisation energies of the elements of the first transition series (Ti to Cu)

A

generally increases as the atomic numbers increase

B

decrease as the atomic number increase

C

do not show any change as the addition of electrons takes place in the inner (n-1)d-orbitals.

D

increase from Ti to Mn and then decrease from Mn to Cu.

Text Solution

Verified by Experts

The correct Answer is:
A
First ionisation energies of 3d-series (first transition sereis) increase with increase in atomic numbr due to (1) increase in nuclear charge (2) decrease in atomic size.
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RESONANCE ENGLISH-D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS -Additional Problems for Self practice (APSP)
  1. The maximum oxidation state shown by V(Z=23),Cr(Z=24),Co(Z=27),Sc(Z=21...

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  2. Which oxide of manganese is acidic in nature

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  3. The first ionisation energies of the elements of the first transition ...

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  4. The ions from among the following which are colourless are : (i)Ti^(...

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  5. Which of the following transition metal ions has least magnetic moment...

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  6. If a non-metal is added to the interstitial sites of a metal then the ...

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  7. The pair of compounds in which the metals are in their highest oxidati...

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  8. Among the following statements, the incorrect one is

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  9. A compound of iron exists as a dimer in vapour state. It is hygroscopi...

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  10. Fe is made passive by :

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  11. Which one of the following dissolves in hot concentrated NaOH?

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  12. Hot copper wire reacts with oxygen to produce:

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  13. A compound is yellow when hot and white when cold. The compound is:

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  14. At 300 C FeCl(3):

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  15. When FeSO(4) is strongly heated, the number of acidic gases produced i...

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  16. On heating ZnCl(2).2H(2)O, the compounds obtained is:

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  17. On heating KMnO(4), one among the following is not formed:

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  18. Reaction of KMnO(4) in neutral or very weakly alkaline solution can be...

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  19. KMnO(4) in excess on treatment with concentrated H(2)SO(4) forms a com...

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  20. Which of the following statement is wrong?

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