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The actinoids exhibit more number of oxi...

The actinoids exhibit more number of oxidation states in general than the lanthanoids. This is because

A

The 5f-orbitals are more burried than the 4f-orbitals

B

There is a similarly between 4f-and-5f in the their angular part of the wave function

C

The actinoids are more reactive than the lanthanoids

D

The 5f-orbitals extend further from the nucleus than the 4f-orbitals

Text Solution

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The correct Answer is:
D
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  2. uarr Y(g)overset(KI)(larr)CuSO(4)overset(dilH(2)SO(4))(rarr)X(Bluecolo...

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  3. The actinoids exhibit more number of oxidation states in general than ...

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  5. underset(("bot"))(Cu+conc.HNO(3))toCu(NO(3))(2)+X (oxide of nitrogen...

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  6. Pick out the incorrect statement:

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  7. The metals present in insulin and haemoglobin are respectively:

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  8. Metre scales are madeup of alloy:

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  9. A metal M which is not affected by strong acids like conc. HNO(3),conc...

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  12. Number of moles of K(2)Cr(2)O(7) can be reduced by 1 mole of Sn^(2+) i...

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  14. The aqueous solution of CuCrO(4) is green because it contains:

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  15. The aqueous solution of the following salts will be coloured in the ca...

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  16. Rusting of iron in moist air involves-

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  17. Transition metals normally have unfilled 'd' orbitals which are degene...

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  18. Which one of the following transition metal ions is paramagnetic?

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  19. E^(Theta) value for the couple Cr^(3+)//Cr^(2+) and Mn^(3+)//Mn^(2+) a...

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  20. When ammonium dichloromate is heated it decompose and a spark is produ...

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