MHT CET Chemistry question

Which is NOT the correct statement about the chemistry of 3d and 4f series elements? [DCE 2009]

(A)3d elements show more oxidation states than 4f series elements
(B)The energy difference between 3d and 4s orbitals is very little
(C)Europium (II) is more stable than Ce(II)
(D)The paramagnetic character in 3d series elements increases from scandium to copperCorrect

Answer: (D)

Solution

Paramagnetism in the 3d series rises from Sc to Mn (maximum unpaired electrons) and then falls to Zn, so

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Question ID VK-074756