Q.

The plot that correctly represent the trend of the Lanthanide ions in they tri-positive form is

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a

b

c

d

answer is D.

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Detailed Solution

Atomic size and trivalent ionic size of lanthanide elements, gradually decreases as at no increases. This is called lanthanide contraction
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Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
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