Multiple Choice Questions

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The number of water molecules not coordinated to copper ion directly in CuSO4.5H2O is

  • 2

  • 3

  • 1

  • 4


C.

1

In CuSO4.5H2O, four water molecules are coordinated to Cu2+ ion and one water molecule is outside the coordinate sphere. Therefore, the number of water molecule coordinated to copper ion is 3.


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The pair of metal carbonyl complexes that are isoelectronic is

  • Ni(CO)4 and V(CO)6

  • [Cr(CO)6] and V(CO)6

  • [Fe(CO)4]- and Cr(CO)6

  • [Co(CO)4]- and Ni(CO)4


The following ligand is

  • tetradentate

  • bidentate

  • hexadentate

  • tridentate


The compound that inhibits the growth of tumors is:

  • trans-[Pt(Cl)2(NH3)2]

  • trans-[Pd(Cl)2(NH3)2]

  • cis-[Pd(Cl)2(NH3)2]

  • cis-[Pt(Cl)2(NH3)2]


The calculated spin–only magnetic moments (BM) of the anionic and cationic species of [Fe(H2O)6]2 and [Fe(CN)6], respectively, are :

  • 4.9 and 0

  • 2.84 and 5.92

  • 0 and 5.92

  • 0 and 4.9


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The species that can have a trams-isomer (en=ethane-1,2-diamine,ox=oxalate)

  • [Cr(en)2(ox)]+

  • [Pr(en)2Cl2]2+

  • [Zn(en)Cl2]

  • [Pt(en)Cl2]


The INCORRECT statement is :

  • The gemstoe, ruby has Cr3+ ions occupying the octahedral sites of beryl

  • The spin – only magnetic moments of [Fe(H2O)6]2+ and [Cr(H2O)6]2+ are nearly similar.

  • The color of [CoCl(NH3)5]2+ is violet as it absorbs the yellow light.

  • The spin only – magnetic moment of [Ni(NH3)4(H2O2)]2+ is 2.83 BM.


The crystal field stabilization energy (CFSE) of [Fe(H2O)6]Cl2 and K2[NiCl4], respectively are:

  • -2.4 Δ0 and -1.2Δt

  • -0.4 Δ0 and -1.2Δt

  • -0.6 Δ0 and -0.8Δt

  • -0.4 Δ0 and -0.8Δt


Which of the following has longest C-O bond length? (free C-O bond length in CO is 1.128 A0)

  • [Co(CO)4]-

  • [Fe(CO)4]-2

  • [Mn(CO)6]+

  • [Mn(CO)6]+

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Which of the following biphenyls is optically active?

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