Coordination Polyhedra
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Q. Li3N+H2O→A(gas)
Li2CO3Δ−→B(gas)
Hybridisation of the central atom in A and B respectively:
Li2CO3Δ−→B(gas)
Hybridisation of the central atom in A and B respectively:
- sp3, sp
- sp2, sp3
- sp, sp
- sp3, sp3
Q. Hexaflouroferrate(III) ion is an outer orbital complex. the number of unpaired electrons are:
- 1
- 5
- 4
- Unpredictable
Q. Total number σ and π bonds in carbon sub-oxide (C3O2) is .....................
Q. Crystal field stabilisation energy for high spin d4 octahedral complex is
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- −1.2Δo
- −0.6Δo
- −1.8Δo
- −1.8Δo+P
Q.
Low spin complex of d6 cation in an octahedral field will have which of the following energy?
- −125Δ0+P
- 12.55Δ0+3P
- −125Δ0+3P
- −25Δ0+2P
Q. The number of σ and π− bonds in Fe2(CO)9, respectively, are
- 22σ and 15π
- 15σ and 8π
- 22σ and 16π
- 23σ and 15π
Q. Column - IColumn - IIi.[Ni(CO)4]Planar octahedral, diamagneticii.[Fe(NO)(H2O)5]2+Planar, paramagneticiii.[Co(NO2)6]3−Octahedral, diamagneticiv.[Cu(NH3)4]2+Planar octahedral, paramagneticOctahedral, paramagnetic
- i−r, ii−s, iii−p, iv−q
- i−r, ii−p, iii−s, iv−q
- i−r, ii−s, iii−q, iv−t
- i−r, ii−p, iii−q, iv−t
Q. Crystal field stabilisation energy for high spin d4 octahedral complex is
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- −0.6Δo
- −1.8Δo
- −1.8Δo+P
- −1.2Δo
Q.
Which of the following option has the correct combination considering List-I and List-II.
Column -I | Column -II |
(I) N2O5(s) | (P) Cation has sp3d2 hybridised central atom |
(II) ICl3 (Molten) | (Q) Anion has square planar shape |
(III) PBr5(s) | (R) Anion has trigonal planar shape |
(IV) XeF6(s) | (S) Cation is linear |
(T) Cation has tetrahedral shape |
Which of the following option has the correct combination considering List-I and List-II.
- I, P
- II, Q
- III, S
- IV, T
Q. NiCl2P(C2H5)2(C6H5)2 exhibits temperature dependent magnetic behaviour (paramagnetic/diamagnetic). The coordination geometries of Ni2+ in the paramagnetic and diamagnetic states are respectively
- Square planar and square planer
- Square planer and tetrahedral
- Tetrahedral and tetrahedral
- Tetrahedral and square planer
Q. Which has highest paramagnetism?
- [Fe(H2O)6]2+
- [Cr(H2O)6]3+
- [Zn(H2O)6]2+
- [Cu(H2O)6]2+
Q. Which of the following is paramagnetic octahedral complex?
- [CoF6]3−
- [Cu(NH3)4]2+
- [Ni(CO)4]
- [Co(NH3)6]3+
Q. The number of sigma bonds in ethane formed by the overlap of sp3 and s orbitals is:
- 5
- 6
- 4
- 7
Q. Pick out the correct statement with respect [Mn(CN)6]3−:
- It is d2sp3 hybridised and octahedral
- It is dsp2 hybridised and square planar
- It is sp3d2 hybridised and octahedral
- It is sp3d2 hybridised and tetrahedral
Q. Arrange the following species in the increasing order of their magnetic moment.
(I) VCl3 (II) VOSO4 (III) Na3VO4 (IV) [V(H2O)6]SO4.H2O
(I) VCl3 (II) VOSO4 (III) Na3VO4 (IV) [V(H2O)6]SO4.H2O
- III<II<I<IV
- III<IV<II<I
- II<III<I<IV
- IV<I<II<III
Q. Which of the following is paramagnetic in nature?
- N2
- F2
- KO2
- None of these
Q. Match the complex in List-I with the number of unpaired electrons given in List-II.
Q. Assertion :Statement - 1 : POF3 exist but NOF3 does not exist. Reason: Statement - 2 : 'P' can form five bonds by expanding its octet while 'N' can not expand its octet to form five bonds.
- Statement - 1 is true, statement - 2 is true and statement - 2 is correct explanation for statement - 1.
- Statement - 1 is true, statement - 2 is true and statement - 2 is NOT the correct explanation for statement - 1.
- Statement - 1 is true, statement - 2 is false.
- Statement - 1 is false, statement - 2 is true.
Q. The shape of ClO−3 is
- Trigonal planar
- Pyramidal
- Tetrahedral
- Square planar
Q. Which of the following complex compound(s) is/are paramagnetic and low spin?
- K3[Fe(CN6)]
- [Cr(NH3)6]3+
- [Mn(CN)6]4−
- [Ni(CO)4]0
Q. Number of sigma and pi bonds in ClO−3 ion are:
- 2σ and 2π
- 3σ and 3π
- 3σ and 2π
- 2σ and 3π