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Identify the incorrect statement among t...

Identify the incorrect statement among the following

A

Lanthanoid contraction is the accumultion of successive shrinkages

B

As a result of lanthanoid contraction, the properties of 4d series of the transition elements have no similarities with the 5d series of elements

C

Shielding power of 4f electrons is quite weak

D

There is a decrease in the radii ofthe atoms or ions as one proceeds from La to Lu

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The correct Answer is:
B
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AAKASH SERIES-D-BLOCK ELEMENTS-OBJECTIVE EXERCISE-3 (PREVIOUS NEET/AIPMT QUESTIONS)
  1. Copper sulphate dissolves in excess of KCN to give

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  2. Which one of the following ions is the most stable in aqueous solution...

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  3. Identify the incorrect statement among the following

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  4. The correct order of decreasing second ionization enthalpy of Ti(22), ...

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  5. Which one of the elements with the following outer orbital configurati...

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  6. Which of the following ions will exhibit colour in aqueous solutions ?

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  7. Which one of the following ions has electronic configuration [Ar]3d^6 ...

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  8. Which of the following pairs has the same size

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  9. Match List I (substances) with List II (processes) employed in the man...

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  10. Which of the following oxidation states is common for all lanthanides ...

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  11. Compare the stability of + 2 oxidation state of the elements of the fi...

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  12. Acidified K2Cr2O7 solution turns green when Na2SO3 is added to it. Thi...

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  13. Which of the statements is not true?

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  14. Which one of the following does not correctly represent the correct or...

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  15. Four successive members of the first series of the transition metals a...

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  16. Catalytic activity of transition elements and their compounds is due t...

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  17. Which of the following exhibits only +3 oxidation state ?

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  18. Which of the following does not give oxygen on heating?

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  19. Which of the following lanthanoid ions is diamagnetic ?

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  20. Identify the correct order of solubility of Na(2)S, CuS and ZnS in aqu...

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