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CBSE Questions for Class 12 Engineering Chemistry Coordination Compounds Quiz 13 - MCQExams.com

NCl3 and BCl3 are mixed in a container. Which the following is true for hybridisation of N and B the product formed by bonding of NCl3 and BCl3?
  • Hybridisation of N changes but for B it remains same 
  • Hybridisation of B changes but for N it remains same
  • Hybridisation of both N and B change
  • Hybridisation of neither N nor B changes
The number of Cl combined by secondary valency in  [Fe(NH3)4Cl2]Cl is ______
  • 1
  • 2
  • 3
  • 0
Which of the following complexes is not correctly matched with hybridization of its central metal?
  • [CoF6]3;d2sp3
  • [Ni(CO)4];sp3
  • [Cr(H2O)6]3+;d2sp3
  • [Pt(NH3)4]2+;dsp2
Which compound to use for treatment of tumor?
  • Cis[PdCl2(NH3)2]
  • Trans[PdCl2(NH3)2]
  • Cis[PtCl2(NH3)2]
  • Trans[PtCl2(NH3)2]
Which of the following represent E isomer?
Which of the following complexes form facial and meridional isomers?
  • [Cr(H2O)5Cl]+2
  • [Cr(NH3)5Br]SO4
  • [Cr(NH3)3(NO2)3]
  • [Cr(ox)3]3
Tetravalency of carbon is possible in the case of
  • sp3 -hybridisation
  • sp2 -hybridisation
  • sp -hybridisation
  • all of these
The given compounds are______isomer of each other.
1565402_d748e634bf87450a8852268a1d3415f1.PNG
  • Positional
  • Chain
  • Geometrical
  • Functional
Which of the following statement is incorrect?
  • The tendency to attract bonded pair of the electron in case of hybrid orbitals follows the order:   sp>sp2>sp3
  • Alkali metals generally have negative value of electron gain enthalpy
  • Cs+(g) releases more energy upon gain of an electron than Cl(g)
  • The electronegativity values for 2p-series elements is less than that for 3p-series elements on account of small size and high inter electronic configuration
The compound PtCl22NH3 does not react with AgNO3. This compound can be represented as?
  • [Pt(NH3)2Cl]Cl
  • [Pt(NH3)2Cl2]
  • [Pt(NH3)2]Cl2
  • both B  and C

Which of the following represent spspsp2spsp2sp3 hybridization from left to right order?
  • CH2=CHC=H|CCN
  • CHCCH=C=CHCH3
  • NCH|CC|HCHCH3
In CuSO4.5H2O how many molecules of water are indirectly connected to Cu? 
  • 5
  • 4
  • 2
  • 1
Which among the following is used in the treatment of cancer?
  • cis-[Pt(en)2Cl2]
  • cis-[PtCl2(NH3)2]
  • trans-[Pt(en)2Cl2]
  • trans-[Pt(NH3)2Cl2]
When two or more complexes are combined, it is
  • Pattern
  • Theme
  • Complex
  • All of these
The compound that inhibits the growth of tumors is:
  • cis[Pd(Cl)2(NH3)2]
  • cis[Pt(Cl)2(NH3)2]
  • trans[Pt(Cl)2(NH3)2]
  • trans[Pd(Cl)2(NH3)2]
The complex ion that will lose its crystal field stabilization energy upon oxidation of its metal to +3 state is: 

1614858_d49e450a88bf4085bbd7a3399ddcfebf.png
  • [Fe(phen)3]2+
  • [Zn(phen)3]2+
  • [Ni(phen)3]2+
  • [Co(phen)3]2+
Complete removal of both the axial ligands (along the z-axis) from an octahedral complex leads to which of the following splitting patterns? (relative orbital energies not on scale). 
The degenerate orbitals of [Cr(H2O)6]3+ are:
  • dyz and dz2
  • dz2 and xxz
  • dxz and dyz
  • dx2y2 and dxy
Which complex among the following gives a white precipitate on treatment with an aqueous solution of barium chloride?
  • [Pt(NH3)4Br2]Cl2
  • [Co(NH3)5SO4]NO2
  • [Co(NH3)5NO2]SO4
  • [Pt(NH3)4Cl2]Br2
A molecule (X) has (i) four sigma bonds formed by the overlap of sp2 and s orbitals; (ii) one sigma bond formed by sp2 and sp2 - orbitals and (iii) one πbond formed by pz and pz orbitals. Which of the following is X?
  • C2H6
  • C2H5Cl
  • C2H2Cl2
  • C2H4
The complexes [CoNO2(NH3)5]Cl2 and [Co(ONO)(NH3)5]Cl2 are not the examples of.
  • Geometrical isomers
  • Optical isomers
  • Coordination isomers
  • Linkage isomers
The total number of possible coordination isomer for the given compound [Pt(NH3)4Cl2][PtCl4] is?
  • 2
  • 4
  • 5
  • 3
The octahedral complex CoSO4Cl5NH3 exists in two isomeric forms X and Y. Isomers X reacts with AgNO3 to give a white precipitate, but does not react with BaCl2. Isomer Y gives white precipitate with BaCl2 but does not react with AgNO3.
Isomers X and Y are: 
  • ionization isomers
  • linkage isomers
  • coordinating isomers
  • solvent isomers
Brown ring complex known as:
  • K4[Fe(CN)6]
  • [Fe(NO)(H2O)5]SO4
  • [Fe(NO)2)(H2O)4]Br2
  • [FeF6]3
The complexes [Cr(NH3)6][Co(CN)6] and [Co(NH3)6][Cr(CN)6] are not the example of?
  • Geometrical isomers
  • Optical isomers
  • Coordination isomers
  • Linkage isomers
Select the correct statement(s) :
  • BF3>Me3B
  • HCCH(sp carbon)<H2C=CHH(sp2 carbon)<H3CCH2H(sp3 carbon)
  • BF3<Me3B
  • HCCH(sp carbon)>H2C=CHH(sp2 carbon)>H3CCH2H(sp3 carbon)
VSEPR theory suggest a small departure from 109028 for NH3 molecule. The H-N-H bond angle has been found to be 1070 what kind of hybrid orbital will be occupied by the non -bonding pair of electron?
  • sp3
  • sp3.4
  • sp2.13
  • sp2
Select the correct statement for P4O10
  • It has four sp3-hybridized phosphorous atoms
  • It has higher s% charcter in PO bond than the P4O6
  • It has cage -like structure
  • It has pπdπ bonding
Select the correct options for following statement(s) : 
  • sp3 hybrid orbitals are at 900 to one another
  • sp3d2 adjacent hybrid orbitals are at 900 to one another
  • sp2 hybrid orbitals are at 1200 to one another
  • Bond order of NO bond in NO3 is 113.
Choose the correct statement regarding the complexes X and Y:
(I) Both complexes have the same six geometrical isomer.
(II) Both complexes have nearly the same conductivity in H2O.
(III) In both complexes, NH3 is involved only to secondary valency.
(IV) In both complexes, electronic configuration of t2g is same.
  • I, II and III
  • I, II, III and IV
  • II, III and IV
  • I, III and IV
Which of the following sets of molecule(s) is/are having a linear shape but different hybridization?
  • I3 and CO2
  • HgCl2 and ICl2
  • XeF2 and C2H2
  • XeF2 and OCl
Which of the following sets of the molecule(s) is/are having a V-shape but different hybridization? 
  • SnCl2 and H2O
  • SO2 and NO+2
  • BF2 and SCl2
  • OF2 and SCl2
In V.B.T., the idea of hybridization was required to explain which of the following facts: 
  • The equivalence of the bonds in most of the com-pounds
  • The stereochemistry of the molecules
  • The better overlapping of the orbitals
  • None of these
Match the complex species given in Column-I with the possible isomerism given in Column-II and assign the correct code.
Column-I(Complex species)Column-II(Isomerism)
(a) [Co(NH3)4Cl2]+(p) Optical
(b) cis-[Co(en)2Cl2]+(q) Ionization
(c) [Co(NH3)5(NO2)]Cl2(r) Coordination
(d) [Co(NH3)6][Cr(CN)6](s) Geometrical
(t) Linkage
  • a(p) b(q) c(s) d(t)
  • a(s) b(r) c(q) d(p)
  • a(s) b(p) c(q,t) d(r)
  • a(s) b(p) c(q) d(r)
Complexes A and B are respectively.
  • [Cr(NH3)4Cl2]Br,[Cr(NH3)4Br]Cl2
  • [Cr(NH3)4Br]Cl2,[Cr(NH3)4Cl2]Br
  • [Cr(NH3)4ClBr]Cl,[Cr(NH3)4Cl2]Br
  • [Cr(NH3)4Cl2]Br,[Cr(NH3)4ClBr]Cl
Complex A is?
  • [Cr(H2O)6]Cl3
  • [Cr(H2O)5Cl]Cl2H2O
  • [Cr(H2O)4Cl2]Cl2H2O
  • None of these
One mole of the complex compound Co(NH3)5Cl3 gives 3 moles of ions on dissolution in water. One mole of the same complex reacts with two moles of AgNO3 solution to yield two moles of AgCl(s). The structure of the complex is?
  • [Co(NH3)3Cl3]2NH3
  • [Co(NH3)4Cl2]2NH3
  • [Co(NH3)4Cl]Cl2NH3
  • [Co(NH3)5Cl]Cl2
Coordination compounds have great importance in biological systems. In this context, which of the following statements is incorrect?
  • Cyanobalamin is B12 and contains cobalt.
  • Hemoglobin is the red pigment of blood and contains irons.
  • Chlorophylls are green pigments in plants and contains calcium.
  • Carboxypeptidase-A is an enzyme and contains zinc.
The correct order regarding electronegativity of hybrid orbitals of carbon is: 
  • sp<sp2<sp3
  • sp<sp2>sp3
  • sp>sp2<sp3
  • sp>sp2>sp3
Carbon dioxide is isostructural with:
  • HgCl2
  • SnCl2
  • C2H2
  • NO2
2Fe2(SO4)3+3K4[Fe(CN)6]X+6K2SO4
What is the name of X? if-
  • represents brown ring complex
  • represents sodium nitroprusside
  • represents Prussian blue
  • represents chromyl chloride
What is the formula of X if 
1728312_5c8eb3dcfa564a9e88b648cf2fe49aa9.JPG
  • represents CrO24
  • represent CrO5
  • represent Cr2O27
  • represents CrO2Cl2
Na2S+Na2[Fe(CN)5NO]X (purple color)
What is the formula of X? 
  • Fe4[Fe(CN)6]
  •  [Fe(H2O)5NO]SO4
  •  [Fe(H2O)5NO]
  •  Na4[Fe(CN)5(NOS)]
A solution containing 2.675g of CoCl36NH3 (molar mass =267.5 g mol1) is passed through a cation exchanger. The chloride ions obtained in solution were treated with excess of AgNO3 to give 4.78g of AgCl(molar mass=143.5g mol1). The formula of the complex is?
  • [Co(NH3)6]Cl3
  • [CoCl2(NH3)4]Cl
  • [CoCl3(NH3)3]
  • [CoCl(NH3)5]Cl2
Complex manure is that which supplies:
  • S,K and N
  • N,K and P
  • S and N
  • S,N and P
Match each coordination compound in List-I with an appropriate pair of characteristics from List-II and select the correct answer using the code given in the lists.

{en=H2NCH2CH2NH2 'atomic numbers; Ti=22;Cr=24;Co=27Pt=78}

List-IList-II
(P) [Cr(NH3)4Cl2]Cl(1) Paramagnetic and exhibits ionization isomerism
(Q) [Ti(H2O)5Cl](NO3)2(2) Dimagnetic and exhibits cis-trans isomerism
(R) [Pt(en)(NH3)Cl]NO3(3) Paramagnetic and exhibits cis-trans isomerism
(S) [Co(NH3)4(NO3)2]NO3(4) Dimagnetic and exhibits ionization isomerism

  • P-4, Q-2, R-3, S-1
  • P-3, Q-1, R-4, S-2
  • P-2, Q-1, R-3, S-4
  • P-1, Q-3, R-4, S-2
Which one of the following has the largest number of isomers?
  • [Ir(PR3)2H(CO)]2+
  • [Co(NH3)5Cl]2+
  • [Ru(NH3)4Cl2]+
  • [Co(en)2Cl2]+ (R= alkyl group, en= ethylenediamine)
What is the formula of brown ppt.?
  • Cu2I2
  • Cu2I2+I3
  • CuI2
  • CuSO4
Which of the following complex is formed when A reacts with K4[(Fe(CN)6]?
  • Prussian blue
  • Turnbull's blue
  • Brown ring complex
  • Sodium nitroprusside
What is the formula of brown ppt?
  • Fe(OH)3
  • Fe(OH)2
  • FeCl3
  • None of these
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