The hybridised state of Al3+ in the complex ion formed when AlCl3

Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Test Yourself

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.
Advertisement

 Multiple Choice QuestionsMultiple Choice Questions

71.

 The IUPAC name of [Ni(PPh3)2Cl2]2+ is:

  • bis dichloro (triphenylphosphine) nickel (II)

  • dichloro bis (triphenylphosphine) nickel (II)

  • dichloro triphenylphosphine nickel (II)

  • triphenyl phosphine nickel (II) dichloride


72.

Which of the following does not contain any coordinate bond?

  • H3O+

  • BF4-

  • HF2-

  • NH4+


73.

Which of the following complexes has lowest molar conductance?

  • CoCl3·3NH3

  • CoCl3·4NH3

  • CoCl3·5NH3

  • CoCl3·6NH3


74.

Select the diamagnetic complex ion amongst the following complexes (At. no. : Fe = 26,CO = 27)

  • K3[Fe(CN)6]

  • [Co(NH3)6)Cl3

  • K3[FeF6]

  • K3[CoF6]


Advertisement
75.

The correct charge on and co-ordination number of 'Fe' in K3[Fe(CN)6] is

  • +2, 4

  • +3, 6

  • +2, 6

  • +3, 3


76.

Which of the following co-ordinate complexes is an exception to EAN rule? (Given, atomic number Pt = 78, Fe = 26, Zn = 30, Cu = 29)

  • [Pt(NH3)6]4+

  • [Fe(CN)6]4-

  • [Zn(NH3)4]2+

  • [Cu(NH3)4]2+


77.

Consider the following two complex ions : [CoF6]3- and [Co(C2O4)3]3-. Which of the following statement(s) is/are false?

I. Both are octahedral.

II. [Co(C2O4)3]3- is diamagnetic while [CoF6]3- is paramagnetic.

III. Both are outer orbital complexes.

IV. In both the complexes, the central metal is in the same oxidation state.

  • Both II and III

  • II, III and IV

  • Only III

  • Both III and IV


78.

Chlorophyll is a coordination compound of

  • Iron

  • Magnesium

  • Manganese

  • Zinc


Advertisement
Advertisement

79.

The hybridised state of Al3+ in the complex ion formed when AlCl3 is treated with aqueous acid is

  • sp3

  • dsp2

  • sp3d2

  • sp2d


C.

sp3d2

AlCl3 + aqueous acid → [Al(H2O)6]3+

Al3+ ions give a complex ion in which Al3+ ion form six coordinate covalent bonds with 6 H2O molecules.

Hence, it shows sp3d2 hybridisation due to availability of vacant 3d-orbitals.


Advertisement
80.

Which of the following is a neutral complex?

  • [Pt(NH3)2Cl2]

  • [Co(NH3)6]Cl3

  • [Ni(NH3)6]Cl2

  • K4[Fe(CN)6]


Advertisement