Assertion: is named as tetrakis (ethylene-diammine) &mu

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 Multiple Choice QuestionsMultiple Choice Questions

261.

CO binds itself to metal atoms through :

  • carbon atom only

  • oxygen atom only

  • carbon and oxygen atom

  • does not bind


262.

Match list I with list II and select the correct answer using the codes given below the lists.
     List I Metal ion

  List II Magnetic moment (B.M)

 A. Cr3+  1.  35
B.  Fe2+  2.  30
C. Ni2+  3.  24
D. Mn2+  4.  15
   5.  8

  • A-1, B-3, C-5, D-4

  • A-2, B-3,C-5,D-1

  • A-4, B-3, C-5, D-1

  • A-4, B-5, C-3, D-1


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263.

Assertion:

 is named as tetrakis (ethylene-diammine) μ-hydroxo-m-imido dicobalt (III) ion.

Reason : In naming polynuclear complexes i.e., containing two or more metal atoms joined by bridging ligands, the word μ is added with hyphen before the name of such ligands.

  • If both assertion and reason are true and reason is the correct explanation of assertion.

  • If both assertion and reason are true but reason is not the correct explanation of assertion.

  • If assertion is true but reason is false.

  • If both assertion and reason are false.


A.

If both assertion and reason are true and reason is the correct explanation of assertion.

is named as tetrakis (ethylenediammine) -μ-hydroxo-μ-imido dicobalt (III) ion. For more than one bridging group the word μ is repeated before each bridging group.


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264.

Which of the following is considered as an anticancer species?


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265.

Assertion : Al forms [AlF6]3- but B does not form [BF6]3-.

Reason : B does not react with fluorine.

  • If both assertion and reason are true and reason is the correct explanation of assertion

  • If both assertion and reason are true but reason is not the correct explanation of assertion

  • If assertion is true but reason is false

  • If both assertion and reason are false


266.

Which of the following metal ions will form complexes with the same magnetic moment and geometry irrespective of the nature of ligands?

  • Ni2+

  • Fe2+

  • Cu2+

  • Co2+


267.

Wavelength of red light is absorbed by the complex

  • [Cu(CN)4]2-

  • [Cu(NH3)4]2+

  • CuSO4

  • Cu(CN)2


268.

In the change[Cu(H2O)6F]2+ HCl [CuCl(H2O)5]+, the colour changes from

  • blue to green

  • blue to pink

  • pink to green

  • pink to blue


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269.

Assertion : In high spin situation, configuration
of d5 ions will be t2g3, eg2.

Reason : In high spin situation, pairing energy is less than crystal field energy.

  • If both assertion and reason are true and reason is the correct explanation of assertion.

  • If both assertion and reason are true but reason is not the correct explanation of assertion.

  • If assertion is true but reason is false.

  • If both assertion and reason are false.


270.

Which of the following does not contain any coordinate bond?

  • H3O+

  • BF4-

  • HF2-

  • NH4+


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