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Which of the following statement is wron...

Which of the following statement is wrong for the d-block elements?

A

They have general electronic configuration `(n-1)d^(1-10)ns^(0-7)`.

B

They generally exhibit variable valency.

C

Last electron enters in `(n-1)d` sub-shell in them.

D

They are placed from `3^(rd) to 6^(th)` period in modern periodic table.

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The correct Answer is:
A, B, C
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RESONANCE-PERIODIC TABLE & PERIODICITY-Advanced Level Problems
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  2. Which is true statement(s)?

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  3. Which of the following statement is wrong for the d-block elements?

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  4. Poor shielding of nuclear charge by d or f-orbital electrons is respon...

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  5. Which of the following element(s) have only one non-zero oxidation sta...

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  6. Which of the following is/are true order (s):

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  7. Select the endothermic step(s):

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  8. Which of the following has/have not unit?

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  9. Atomic number of Ag is 47. In the same group the atomic numbers of ele...

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  10. What is the sum of oxidation states of hydrogen in CaH(2) &CH(4).

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  11. Most stable oxidation state of Thallium is +n. What is the value of n.

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  12. Total number of elements which have more ionization energy as compare ...

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  13. For the gaseous reaction K + F rarr K^(+) +F^(-), Deltah was calculate...

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  14. How many elements are more electropositive than CI. B, N, O, C, S, ...

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  15. EA(1) value of some group of p-Block elements ae given: a, b, c……...

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  16. EA(1) value of some group of p-Block elements ae given: a, b, c……...

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  17. EA(1) value of some group of p-Block elements ae given: a, b, c……...

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  18. The element whose electronic configuration is 1s^(2), 2s^(2)2p^(6), 3s...

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  19. Oxygen shows +2 oxidation state is

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  20. Which Group IIIA elements is expected to have physical and chemical pr...

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