Important Questions of Coordination Compounds Chemistry | Zigya

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281.

Which one ofthe following forms with an excess of CN- (cyanide) a complex having coordination number two?

  • Cu+

  • Ag+

  • Ni2+

  • Fe2+


282.

Which of the following is not considered as an organometallic compound?

  • cis-Platin

  • Ferrocene

  • Zeise's salt

  • Grignard reagent


283.

The complex used as an anti-cancer agent is

  • mer-[Co(NH3)3Cl3]

  • cis-[PtCl2(NH3)2]

  • cis-K2[PtCl2Br2]

  • Na2[CoCl4]


284.

The colourless species is

  • VCl3

  • VOSO4

  • Na3VO4

  • [V(H2O)]SO4.H2O


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285.

Which of the following does not have optical isomer?

  • [Co(NH3)3Cl3]

  • [Co(en)3]Cl3

  • [Co(en)2Cl2]Cl

  • [Co(en)(NH3)2Cl2]Cl


286.

What is the co-ordination number of sodium in Na2O?

  • 6

  • 4

  • 8

  • 2


287.

Assertion : The [Ni(en)3]Cl2 (en = ethylene diamine) has lower stability than [Ni(NH3)6]Cl5.

Reason : In [Ni(en)3]Cl2 the geometry of Ni is trigonal bipyramidal.

  • 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.


288.

In the following compound, the number of sp-hybridised carbons are

CH2 = C = CH - CN(CH) - C ≡ CH

  • 2

  • 3

  • 4

  • 5


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289.

Which of the following molecule or ions is a bidentate ligand?

  • C2O42-

  • Br2+

  • CH3NH2

  • CH3-CN


290.

CO is practically non-polar since

  • the sigma electron drift from C to O is almost nullified by the pi-electron drift from O to C

  • the sigma electron drift from O to C is almost nullified by the pi-electron drift from C to O

  • the bond moment is low

  • there is a triple bond between C and O


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