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Which of the following statements is not...

Which of the following statements is not correct?

A

`La(OH)_(3)` is less basic than `Lu(OH)_(3)`.

B

In lanthanide series ionic radius of `Ln^(3+)` ions decreases.

C

La is actually an element of transition series rather than lanthanide series.

D

Atomic radii of Zr and Hf are same because of lanthanide contraction.

Text Solution

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The correct Answer is:
A
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RESONANCE-D & F-BLOCK ELEMENTS & THEIR IMPORTANT COMPOUNDS -Exercise 2
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  2. The correct statement(s) from among the following is/are? (i). all t...

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  3. Which of the following statements is not correct?

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  4. Total number of 3d-series transition elements contain either 3d^(1) or...

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  5. How many of the following show variable oxidation states in their comp...

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  6. Magnetic moment value for a d-block ion is 4.90 BM determine value of ...

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  7. Determine total number of unpaired electrons in following ions Ti^(3...

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  8. An element of I^(st) transition series X^(+3) have highest magnetic mo...

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  9. Chromite ore is processed through the following sequence In this ...

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  10. KMnO(4)underset(R.A.)overset(H^(+))toMn^(x) KMnO(4)underset(R.A.)ove...

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  11. The no. of electrons satisfying n+l=7 for Lu (atomic number:71)

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  12. Correct statements about transiton metals are that they:

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  13. Transition elements have greater tendency to form complexes because th...

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  14. Which of the following statements are correct?

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  15. The melting point of Zn is lower as compared to those of the other ele...

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  16. The less stable oxidation states of Cr are:

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  17. Which of the following statement is/are correct?

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  18. Select correct statement(s).

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  19. The colour of the transition metal ions is due to

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  20. Which of the following chemical reaction(s) is//are involved in develo...

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