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Statement-I : Ca^(2+) and Sc^(3+) are is...

Statement-I : `Ca^(2+)` and `Sc^(3+)` are isolectronic but ionic radius of `Sc^(3+)` is less than that of `Ca^(2+)`.
Statement-II : The effective nuclear charge on the outer shell electrons in `Sc^(3+)` is more than that in `Ca^(2+)`

A

If both Statement-I & Statement-II are True & the Statement-II is a correct explanation of the Statement-I.

B

If both Statement-I & Statement-II are True but Statement-II is not a correct explanation of the Statement-I.

C

If Statement-I is True but the Statemet-II is False

D

If Statement-I is False but the Statement-II is True

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The correct Answer is:
A
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BANSAL-PERIODIC TABLE-EXERCISE-2
  1. Pauling give method to calculate univalent ion radii by assuming that ...

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  2. Pauling give method to calculate univalent ion radii by assuming that ...

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  3. Statement-I : Ca^(2+) and Sc^(3+) are isolectronic but ionic radius of...

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  4. Statement-I : O rarr O^(2-) is associated with energy absorbed but yet...

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  5. Assertion (A) : EA of O is less than that of F but greater than that o...

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  6. Statement-I : Cs and F combines violently to form CsF. Statement-II :...

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  7. Statement-I : Lithium is a better reducing agent than Cs. Statement-...

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  8. Statement-I : IE(3) of Mn is more than IE(3) of Fe. Statement-II : ...

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  9. Statement-I : Fluorine shows maximum oxidising property in a periodic ...

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  10. Statement-I : The ionisation potential of Sn is greater than Pb. Sta...

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  11. Statement-I : (I.E.)(n) of an atom is always greater than (I.E.)(n-1) ...

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  12. Statement-I : Nitrogen atom has higher ionization energy than fluorine...

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  13. Which of the following is correct order of EA.

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  14. If Hund's rule is not followed and energy of orbitals is governed by"n...

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  15. Amongst the following statements, which is/are correct?

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  16. The ionic compound A^(+)B^(-) is formed when the

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  17. Which of the following is/are correct?

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  18. Which of the following is false

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  19. Select the correct order (s).

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  20. Match Column-I (atomic number of elements) with Column-II (position of...

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