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An atom with atomic number 21 belongs to...

An atom with atomic number 21 belongs to the category of

A

s-block elements

B

p-block elements

C

d-block elements

D

f-block elements

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The correct Answer is:
C
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NIKITA PUBLICATION-D-AND F-BLOCK ELEMENTS-MULTIPLE CHOICE QUESTIONS
  1. Which of the following d-block elements has d^(10) configuration ?

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  2. The ore cromite contsins FeO and

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  3. An atom with atomic number 21 belongs to the category of

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  4. The highest magnetic moments is shown by the transition metal ion wit...

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  5. Which of the following pair of ions have the same number of unpaired e...

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

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  7. The maximum number of transition metal elements that can be accommodat...

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  8. The pair of atoms with anomalous (exceptional) electron congigurations

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  9. The transition metals possess strong binding jforce because of

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  10. Least paramagnetic property is shown by

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  11. Transition metals from

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  12. Which one of the following represents the electronic configuration of ...

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  13. Transition metals are less reactive because of their

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  14. The number of d-electrons in Fe ^(+2) ion is equal to that of

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  15. Which one of the following is an example of non-typical transition ele...

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  16. Transition metal exhibits an oxidation state grater than +2 due to los...

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  17. The stable oxidation state likely to be shown by first row transition ...

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  18. Interstitial compounds are formed by

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  19. The pair of elements which can show +1 odidation state.

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  20. Transitions elements show generally positive oxidation state due to

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