NEET Chemistry Transition Elements MCQ Question with Solution

Which of the following elements exhibits an effect similar to lanthanoid contraction due to the imperfect shielding of electrons?

A

Zirconium

B

Hafnium

C

Molybdenum

D

Tungsten

Correct Answer

Option B

Detailed Explanation

The lanthanoid contraction causes the second and third d series to have similar radii, as seen in zirconium (Zr) and hafnium (Hf), which is attributed to imperfect shielding of electrons.

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