IIT-JEE 2006 | Coordination Compounds Question 55 | Chemistry

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IIT-JEE 2006

MCQ (Single Correct Answer)

-1

The coordination of $$\mathrm{Ni^2+}$$ is 4.

$$\mathrm{NiCl_2+KCN}$$ (excess) $$\to$$ A (cyano complex)

$$\mathrm{NiCl_2+ conc.~HCl}$$ (excess) $$\to$$ B (chloro complex)

The hybridisation of $A$ and $B$ are :

$d s p^2, s p^3$

$s p a, s p^3$

$d s p^2, d s p$

$s p^3 d^2, d^2 s p^3$

IIT-JEE 2004 Screening

MCQ (Single Correct Answer)

-0.5

The pair of compounds having metals in their highest oxidation state is

MnO₂, FeCl₃

[MnO₄]^-, CrO₂Cl₂

[Fe(CN)₆]^3-, [Co(CN)₃]

[NiCl₄]^2- , [CoCl₄]^-

IIT-JEE 1987

MCQ (Single Correct Answer)

-0.25

The brown ring complex compound is formulated as [Fe(H₂O)₅(NO)⁺]SO₄. The oxidation state of iron is

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