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Ionic Bond

Consider the ...

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Consider the following statements with respect to lanthanides: 1. The basic strength of hydroxides of lanthanides increases from La(OH)3 to Lu(OH)3. 2. The lanthanide ions Lu+3, Yb+2 and Ce+4 are diamagnetic Which of the statement(s) given above is/are correct? 1 ) 1 only 2 ) 2 only 3 ) Both 1 and 2 4 ) Neither 1 nor 2

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Q. Consider the following statements with respect to lanthanides:

1. The basic strength of hydroxides of lanthanides increases from

L a (O H)_{3}

L u (O H)_{3} .

2. The lanthanide ions

L u^{3 +}, Y b^{2 +} a n d C e^{4 +}

are diamagnetic.

Which of the statement(s) given above is/are correct?

Q. Observe the following statements.

1

. Lanthanides actively participate in chemical reactions.

2

. The basic nature of hydroxides of lanthanides increases from

L a (O H)_{3}

L u (O H)_{3}

.

3

. Lanthanides do not form coordinate compounds as readily as d-block metals.
The correct statements are:

Q. Consider the following statements in respect of lanthanoids.
1. The basic strength of hydroxides of lanthanoids increases from L

a (O H)_{3}

L u (O H)_{4}

.
2. The lanthanoid ions

L u^{3 +}, Y b 6 2 +, C e^{4 +}

are diamagnetic.
Which of the statement(s) given above is are correct?

Q. Which one of the following lanthanides exhibits

+ 2

oxidation state with diamagnetic nature ? (Given

Z

N d = 60, Y b = 70, L a = 57, C e = 58)

Q. Consider following statements.

(I)

The size of the lanthanide ions

(M^{3 +})

decreases as the atomic number of

M

(I I)

Electronic spectra of lanthanides show very broad bands.

(I I I)

As with transition metals, coordination number six is very common in lanthanide complexes.
Which of the statements given above is/are correct?

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