MHT CET Chemistry question

Both and have tetrahedral geometry but former is paramagnetic while latter is diamagnetic in nature because

(A)former is in oxidation state while the latter is in zero oxidation state
(B)former has two unpaired electrons while the latter has no unpaired electron
(C)former has three unpaired electrons while the latter has four unpaired electrons
(D)Both (a) and (b)Correct

Answer: (D)

Solution

contains Ni (, weak-field Cl) with two unpaired electrons, whereas contains

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Question ID VK-073318