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NEET UG CHEMISTRY MCQ: d & f- BLOCK ELEMENTS

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Chromium has most stable oxidation state of:

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Correct option: B

+ 3

Option B (+3) is correct because chromium exhibits a stable +3 oxidation state due to the stable

d^3

electronic configuration.

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A substance which is not paramagnetic is: Green vitriol is Which is the correct order of ionic sizes?) At.no.∶Ce=58,Sn=50,Yb=70 and Lu=71) In the first transition series, the differentiating electron enters: Philosopher’s wool on heating with BaO at 1100

^\circ

C produce A compound in which a metal ion

{\mathrm{M}^{x + }}

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\sqrt {24}

BM. The number of unpaired electrons in the compound and the oxidation state of the metal ion are respectively.