The correct order of the stoichiometries of AgCl formed when AgN

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 Multiple Choice QuestionsMultiple Choice Questions

211.

CH3-CHCl-CH2-CH3 has a chiral centre. Which one of the following represents its R configuration?


212.

The d-electron configuration of Cr3+, Mn2+, Fe2+ and Ni2+ are 3d4, 3d5, 3d6 and 3d8 respectively. Which one of the following aqua complexes will exhibit the minimum paramagnetic behaviour?

(At. no. Cr = 24, Mn = 25, Fe = 26, Ni = 28)

  • [Mn(H2O)6]2+

  • [Fe(H2O)6]2+

  • [Ni(H2O)6]2+

  • [Ni(H2O)6]2+


213.

In which of the following pairs are both the ions coloured in aqueous solution?

(At. no.: Sc = 21, Ti = 22, Ni = 28, Cu = 29, Co = 2)

  • Ni2+, Ti3+

  • Sc3+, Ti3+

  • Sc3+,Co2+

  • Sc3+,Co2+

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214.

Which of the following is not chiral 

  • 2-butanol

  • 2,3 -dibromo pentane

  • 3- bromopentane

  • 3- bromopentane

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215.

[Co(NH3)4(NO2)2]Cl exhibits:

  • linkage isomerism, ionisation isomerism and optical isomerism

  • Linkage isomerism, ionisation isomerism and geometrical isomerism

  • ionization isomerism, geometrical isomerism and optical isomerism

  • ionization isomerism, geometrical isomerism and optical isomerism

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216.

[Cr(H2O)6]Cl3 (at. no. of Cr = 24) has a magnetic moment of 3.83 BM, the correct distribution of 3d electrons in the chromium of the complex is:

  • 3 straight d subscript straight x squared minus straight y squared end subscript superscript 1 comma space 3 straight d subscript straight z squared end subscript superscript 1 comma space 3 straight d subscript xz superscript 1
  • 3 straight d subscript xy superscript 1 comma space 3 straight d subscript x squared minus y squared end subscript superscript 1 comma space 3 straight d subscript yz superscript 1
  • 3 straight d subscript xy superscript 1 comma space 3 straight d subscript zy superscript 1 comma space 3 straight d subscript zx superscript 1
  • 3 straight d subscript xy superscript 1 comma space 3 straight d subscript zy superscript 1 comma space 3 straight d subscript zx superscript 1
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217.

The number of unpaired electrons in a paramagnetic  diatomic molecule of an element with atomic number 6 is:

  • 2

  • 3

  • 4

  • 4

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218.

An example of a sigma bonded organometallic compound is :

  • Ruthenocene

  • Grignard's reagent

  • Ferrocene

  • Ferrocene

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219.

The correct order of the stoichiometries of AgCl formed when AgNO3 in excess is treated with the complexes: CoCl3.6NH3, CoCl3.5NH3, CoCl3.4NH3 respectively is

  • 1 AgCl, 3 AgCl, 2 AgCl

  • 3 AgCl, 1 AgCl, 2 AgCl

  • 3 AgCl, 2 AgCl, 1 AgCl

  • 3 AgCl, 2 AgCl, 1 AgCl


C.

3 AgCl, 2 AgCl, 1 AgCl

Complexes are respectively [Co(NH3)6]Cl3, [Co(NH3)5Cl]Cl2and [Co(NH3)4Cl2]Cl

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220.

Correct increasing order for the wavelengths of absorption in the visible region for the complexes of Co3+ is

  • [Co(en)3]3+, [Co(NH3)6]3+, [Co(H2O)6]3+

  • [Co(H2O)6]3+, [Co(en)3]3+, [Co(NH3)6]3+

  • [Co(H2O)6]3+, [Co(NH3)6]3+, [Co(en)3]3+

  • [Co(H2O)6]3+, [Co(NH3)6]3+, [Co(en)3]3+

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