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Knowing that the chemistry of lanthanoid...

Knowing that the chemistry of lanthanoids (Ln) is dominated by its `+3` oxidation state, which of the following statement is incorrect?

A

The ionic sezes of Ln (III) decrease in general with increasing atomic number.

B

Ln (III) compounds are generally colourless.

C

Ln (III) hydroxides are mainly basic in character

D

Becaue of the larger size of the Ln (III) ions the bonding in its compounds is predominently ionic in character.

Text Solution

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The correct Answer is:
B
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RESONANCE ENGLISH-D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS -Exercise 3
  1. More number of oxidation states are exhibited by the actinides than th...

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  2. In context with the transition elements, which of the following statem...

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  3. Knowing that the chemistry of lanthanoids (Ln) is dominated by its +3 ...

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  4. The correct order of E(M^(2+)//M)^@ value with negative sign for the f...

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  5. In context of the lanthanoids , which of the following statement is no...

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  6. The outer electrons configuration of Lu (Atomic No.,71) is :

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  7. Iron exhibits +2 and +3 oxidation states. Which of the following state...

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  8. Which of the following arrangements does not represent the correct ord...

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  9. Four successive members of the first row transition elements are liste...

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  10. Which series of reactions correctly chemical reactions related to iron...

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  11. The equation which is balanced and represents the correct product(s) i...

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  12. Match the catalysts to the correct processes :

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  13. The colour of KMnO(4) is due to : [where M to metal, L to ligand]

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  14. A compound of vanadium chloride has spin only magnetic moment of 1.73 ...

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  15. Which one of the following exhibits the largest number of oxidation st...

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  16. Copper becomes green when exposed to moist air for long period. This i...

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  17. Which of the following statements is false?

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  18. Which one of the following species is stable in aqueous solution?

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  19. The transition metal ions responsible for colour in ruby and emerald a...

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  20. The pair of compounds having metals in their highest oxidation state i...

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