From the stability constant (hypothetical  values)given below, predict which is the strongest ligand?

(a) Cu2++4NH3[Cu(NH3)4]2+;(k=4.5x1011)

(b) Cu2++4CN[Cu(CN)4]2-;(K=2.0x1027)

(c) Cu2++2en[Cu(en)2]2+;(K=3.0x1015)

(d) Cu2++4H2O[Cu(H2O)4]2+;(K=9.5x108)

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According to IUPAC nomenclature sodium nitroprusside is named as

(a) sodium pentacyanonitrosyl ferrate(II)

(b) sodium pentacyanonitrosyl ferrate(III)

(c) sodium nitroferricyanide

(d) sodium nitroferrocyanide

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Amoung the following which is not the π-bonded organomettalic compound?

(a) K[PtCl3(η2-C2H4)]

(b) Fe(η5-C2H5)2

(c) Cr(η6-C6H6)2

(d) (CH3)4Sn

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The correct IUPAC name of KAI(SO4)2.12H2O is:

(a) aluminium potassium sulphate-12-water

(b) potassium aluminium(III)sulphate-12-water

(c) potassium aluminate(III)sulphatehydrate

(d) aluminium(III) potassium sulphate hydrate-12

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The complex showing a spin-only magnetic moment of 2.82 B.M. is:

(a) Ni(CO)4

(b) [NiCl4]2-

(c) Ni(PPh3)4

(d) [Ni(CN)4]2-

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Atomic number of Cr and Fe are respectively 24 and 26 which of the following is paramagnetic with the spin of electron?

(a) [Cr(CO)6]

(b) [Fe(CO)5]

(c) [Fe(CN)6]4-

(d) [Cr(NH3)6]3+

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The compound which does not show paramagnetism is:

(a) [Cu(NH3)4]Cl2

(b) FeO

(c)NO

(d) N2O4

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Which complex has square planar shape dsp2 hydridizatiop?

(a) [Ni(CN)4]2-

(b) [Cu(NH3)42+

(c) [PtCl4]2-

(d) All of these

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Which has regular tetrahedral geometry?

(a) [Ni(CN)4]2+

(b) SF4

(c) [BF4]-

(d) XeF4

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Out of TiF62-,CoF63-,Cu2Cl2and NiCl42-(At. no. Z of Ti=22, Co=27, Cu=29, Ni=28), the colourless species are

(a) TiF62- and CoF63-

(b) Cu2Cl2 and NiCl42-

(c) TiF62- and Cu2Cl2 

(d) CoF63- and NiCl42-

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