NEET Chemistry Coordination Chemistry Question Bank

done Self Evaluation Test - Co-ordination Compounds Total Questions - 100

• question_answer1)
  \[AgCl\] is soluble in \[N{{H}_{4}}OH\] solution. The solubility is due to formation of
  A)
  \[AgOH\]          done clear
  B)
  \[A{{g}_{2}}O\] done clear
  C)
  \[{{[Ag{{(N{{H}_{3}})}_{2}}]}^{+}}\]           done clear
  D)
  \[N{{H}_{4}}Cl\] done clear
  View Solution play_arrow

• question_answer2)
  In which of the following coordinate compounds the central metal atom obeys the EAN rule.
  A)
  \[{{K}_{3}}[Fe{{\left( CN \right)}_{6}}]\]      done clear
  B)
  \[{{K}_{4}}[Fe{{\left( CN \right)}_{6}}]\] done clear
  C)
  \[[Cu{{(N{{H}_{3}})}_{4}}]S{{O}_{4}}\]   done clear
  D)
  All of these done clear
  View Solution play_arrow

• question_answer3)
  Which of the following complex will show geometrical as well as optical isomerism (en=ethylenediammine)
  A)
  \[[Pt{{(N{{H}_{3}})}_{2}}C{{l}_{2}}]\]     done clear
  B)
  \[[Pt\left( en \right)C{{l}_{4}}]\] done clear
  C)
  \[{{[Pt{{(en)}_{3}}]}^{4+}}\]              done clear
  D)
  \[[Pt{{(en)}_{2}}C{{l}_{2}}]\] done clear
  View Solution play_arrow

• question_answer4)
  The total number of possible isomers of the complex compound \[[C{{u}^{II}}{{(N{{H}_{3}})}_{4}}][P{{t}^{II}}C{{l}_{4}}]\] is
  A)
  3                                  done clear
  B)
  6   done clear
  C)
  5                                  done clear
  D)
  4 done clear
  View Solution play_arrow

• question_answer5)
  Which of the following will give maximum number of isomers?
  A)
  \[[Co{{(N{{H}_{3}})}_{4}}C{{l}_{2}}]\]    done clear
  B)
  \[{{[Ni(en){{(N{{H}_{3}})}_{4}}]}^{2+}}\] done clear
  C)
  \[[Ni{{({{C}_{2}}{{O}_{4}})}_{4}}{{(en)}_{2}}]\]   done clear
  D)
  \[{{[Cr{{(SCN)}_{2}}{{(N{{H}_{3}})}_{4}}]}^{2+}}\] done clear
  View Solution play_arrow

• question_answer6)
  Which of the following will exhibit maximum ionic conductivity?
  A)
  \[{{K}_{4}}[Fe{{(CN)}_{6}}]\]              done clear
  B)
  \[[Co{{(N{{H}_{3}})}_{6}}]C{{l}_{3}}\] done clear
  C)
  \[[Cu{{(N{{H}_{3}})}_{4}}C{{l}_{2}}]\]          done clear
  D)
  \[[Ni{{(CO)}_{4}}]\] done clear
  View Solution play_arrow

• question_answer7)
  \[{{[Fe{{({{H}_{2}}O)}_{6}}]}^{2+}}\] and \[{{\left[ Fe{{\left( CN \right)}_{6}} \right]}^{4-}}\] differ in:
  A)
  geometry, magnetic moment done clear
  B)
  geometry, hybridization done clear
  C)
  magnetic moment, colour done clear
  D)
  hybridization, number of d-electrons done clear
  View Solution play_arrow

• question_answer8)
  Which of the following complexes have a maximum number of unpaired electrons?
  A)
  \[[Ni{{\left( CO \right)}_{4}}]\] done clear
  B)
  \[{{[Co{{\left( N{{H}_{3}} \right)}_{4}}{{\left( N{{O}_{2}} \right)}_{2}}]}^{+}}\] done clear
  C)
  \[{{\left[ Ag{{\left( CN \right)}_{2}} \right]}^{-}}\] done clear
  D)
  \[{{\left[ CuB{{r}_{4}} \right]}^{2-}}\] done clear
  View Solution play_arrow

• question_answer9)
  The degeneracy of d-orbitals is lost under:

  (I) Strong field ligand

  (II) Weak field ligand

  (III) Mixed field ligand

  (IV) Chelated ligand field

  A)
  I, II and IV        done clear
  B)
  I and II done clear
  C)
  I, II, III and IV               done clear
  D)
  I, II and III done clear
  View Solution play_arrow

• question_answer10)
  What is the magnetic moment (spin only) and hybridisation of the brown ring complex \[\left[ Fe{{\left( {{H}_{2}}O \right)}_{5}}NO \right]S{{O}_{4}}\]?
  A)
  \[\sqrt{3}BM,s{{p}^{3}}{{d}^{2}}\]    done clear
  B)
  \[\sqrt{3}BM,{{d}^{2}}s{{p}^{3}}\] done clear
  C)
  \[\sqrt{15}BM,s{{p}^{3}}{{d}^{2}}\]             done clear
  D)
  \[\sqrt{15}BM,{{d}^{2}}s{{p}^{3}}\] done clear
  View Solution play_arrow

• question_answer11)
  \[M{{n}^{2+}}\] forms a complex with \[B{{r}^{-}}\] ion. The magnetic moment of the complex is 5.92 B.M. What would be the probable formula and geometry of the complex?
  A)
  \[{{[MnB{{r}_{6}}]}^{4-}}\], octahedral done clear
  B)
  \[{{[MnB{{r}_{4}}]}^{2-}}\], square planar done clear
  C)
  \[{{[MnB{{r}_{4}}]}^{2-}}\], tetrahedral done clear
  D)
  \[{{[MnB{{r}_{5}}]}^{3-}}\], trigonal bipyramidal done clear
  View Solution play_arrow

• question_answer12)
  The complex given is

  (i) non-superimposable on its mirror images

  (ii) optically active

  (iii) rotate plane polarised light

  (iv) planar

  A)
  (i) and (ii)                       done clear
  B)
  (i) and (iv) done clear
  C)
  (i),(ii) and (iii)     done clear
  D)
  (ii) only done clear
  View Solution play_arrow

• question_answer13)
  \[[Co{{(N{{H}_{3}})}_{4}}{{(N{{O}_{2}})}_{2}}]Cl\] exhibits
  A)
  linkage isomerism, ionization isomerism and geometrical isomerism done clear
  B)
  ionization isomerism, geometrical isomerism and optical isomerism done clear
  C)
  linkage isomerism, geometrical isomerism and optical isomerism done clear
  D)
  linkage isomerism, ionization isomerism and optical isomerism done clear
  View Solution play_arrow

• question_answer14)
  Coordination number of Cr is six. A complex with\[{{C}_{2}}O_{4}^{2-}\], en and superoxide \[O_{2}^{-}\] will be in the ratio to make complex \[{{[Cr{{({{C}_{2}}{{O}_{4}})}_{x}},{{(en)}_{y}}{{({{O}_{2}})}_{z}}]}^{-}}\]
  A)
  x-1        y-1        z-1 done clear
  B)
  x-1        y-1       z-2 done clear
  C)
  x-1        y-2        z-2 done clear
  D)
  x-2        y-1       z-1 done clear
  View Solution play_arrow

• question_answer15)
  For complex ion/compound formation reactions

  (I) \[C{{o}^{3+}}(aq)+EDT{{A}^{4-}}\xrightarrow{{}}P\]

  (II) \[N{{i}^{2+}}\left( aq \right)+dmg\left( excess \right)\xrightarrow{N{{H}_{4}}OH}Q\]

  (III) \[Z{{n}^{2+}}\left( aq \right)+gly\left( excess \right)\xrightarrow{{}}R\]

  (IV) \[P{{t}^{4+}}(aq)+en\,(excess)\xrightarrow{{}}S\]

  which of the following complex ion/compound does not exhibit optical activity?

  A)
  P                      done clear
  B)
  Q    done clear
  C)
  R                                  done clear
  D)
  S done clear
  View Solution play_arrow

• question_answer16)
  The diamagnetic species is:

  (I)\[{{\left[ Cu{{\left( CN \right)}_{4}} \right]}^{3-}}\]

  (II) \[{{\left[ Co{{\left( N{{H}_{3}} \right)}_{6}} \right]}^{3+}}\]

  (III) \[{{\left[ Ni{{\left( N{{H}_{3}} \right)}_{6}} \right]}^{2+}}\]

  (IV) \[{{\left[ Fe{{\left( CN \right)}_{6}} \right]}^{3-}}\]

  A)
  I, III                  done clear
  B)
  I, II done clear
  C)
  III, IV                done clear
  D)
  only IV done clear
  View Solution play_arrow

• question_answer17)
  Which of the following order of stability of complex ion is Incorrect?
  A)
  \[{{[Fe{{({{C}_{2}}{{O}_{4}})}_{3}}]}^{3-}}<{{[Fe{{({{H}_{2}}O)}_{6}}]}^{3+}}\] done clear
  B)
  \[{{[Fe(edta)]}^{-}}>{{[Fe{{(en)}_{3}}]}^{3+}}\] done clear
  C)
  \[{{\left[ Ni{{\left( en \right)}_{2}} \right]}^{2+}}>\left[ Ni{{\left( dmg \right)}_{2}} \right]\] done clear
  D)
  \[{{\left[ Fe{{\left( CN \right)}_{6}} \right]}^{3-}}>{{\left[ Fe{{\left( CN \right)}_{6}} \right]}^{4-}}\] done clear
  View Solution play_arrow

• question_answer18)
  The pair in which both species have same magnetic moment (spin only value) is
  A)
  \[{{[Cr{{({{H}_{2}}O)}_{6}}]}^{2+}},{{[CoC{{l}_{4}}]}^{2-}}\] done clear
  B)
  \[{{[Cr{{({{H}_{2}}O)}_{6}}]}^{2+}},{{[Fe{{({{H}_{2}}O)}_{6}}]}^{2+}}\] done clear
  C)
  \[{{[Mn{{({{H}_{2}}O)}_{6}}]}^{2+}},{{[Cr{{({{H}_{2}}O)}_{6}}]}^{2+}}\] done clear
  D)
  \[{{[CoC{{l}_{4}}]}^{2-}},{{[Fe{{({{H}_{2}}O)}_{6}}]}^{2+}}\] done clear
  View Solution play_arrow

• question_answer19)
  In which complex, \[{{d}_{z}}2\] orbital of inner shell is not used in the hybridization of central metal cation
  A)
  \[Fe{{\left( CO \right)}_{5}}\]                  done clear
  B)
  \[{{[Cu{{(N{{H}_{3}})}_{5}}]}^{2+}}\] done clear
  C)
  \[{{[Co{{(N{{H}_{3}})}_{6}}]}^{2+}}\]         done clear
  D)
  \[{{[Ir{{F}_{6}}]}^{3-}}\] done clear
  View Solution play_arrow

• question_answer20)
  Which of the characteristic is not common between \[{{[Cu{{(en)}_{2}}]}^{2+}}\] and \[[Ni{{(dmg)}_{2}}]\]?
  A)
  Geometry of comp lexes done clear
  B)
  Hybridization of central metal cation done clear
  C)
  Magnetic behaviour done clear
  D)
  Number of stereoisomers done clear
  View Solution play_arrow

• question_answer21)
  In which of the following complex hybridization of  central metal is not same as that of donor atom of ligand
  A)
  \[\left[ Ni{{\left( P{{F}_{3}} \right)}_{4}} \right]\] done clear
  B)
  \[\left[ Fe{{\left( dmg \right)}_{2}} \right]\] done clear
  C)
  \[{{[Zn\,{{(en)}_{2}}]}^{2+}}\] done clear
  D)
  \[{{\left[ Ni{{\left( PM{{e}_{3}} \right)}_{4}} \right]}^{2+}}\] done clear
  View Solution play_arrow

• question_answer22)
  Which of the following complex compound (s) is/are paramagnetic and low spin?

  (I) \[{{K}_{3}}\left[ Fe\left( C{{N}_{6}} \right) \right]\]

  (II) \[{{\left[ Ni{{\left( CO \right)}_{4}} \right]}^{10}}\]

  (III) \[{{\left[ Cr{{(N{{H}_{3}})}_{6}} \right]}^{3+}}\]

  (IV) \[{{\left[ Mn\,(C{{N}_{6}}) \right]}^{4\,-}}\]

  Choose the correct code:

  A)
  I only                            done clear
  B)
  II and III done clear
  C)
  I and IV             done clear
  D)
  IV only done clear
  View Solution play_arrow

• question_answer23)
  An aqueous solution of titanium chloride, when subjected to magnetic measurement, measured zero magnetic moment. Assuming the octahedral complex in aqueous solution, the formulae of the complex is:           
  A)
  \[\left[ Ti{{\left( {{H}_{2}}O \right)}_{6}} \right]C{{l}_{2}}\]       done clear
  B)
  \[\left[ Ti{{\left( {{H}_{2}}O \right)}_{6}} \right]C{{l}_{4}}\] done clear
  C)
  \[\left[ TiC{{l}_{3}}{{\left( {{H}_{2}}O \right)}_{3}} \right]\]       done clear
  D)
  \[\left[ TiC{{l}_{2}}{{\left( {{H}_{2}}O \right)}_{4}} \right]\] done clear
  View Solution play_arrow

• question_answer24)
  For octahedral complex, which of the following \[{{d}^{n}}\] configurations of metal cation cannot exist in high spin and low spin forms?
  A)
  \[{{d}^{3}}\] and \[{{d}^{8}}\]          done clear
  B)
  \[{{d}^{3}}\] and \[{{d}^{5}}\] done clear
  C)
  \[{{d}^{3}}\] and \[{{d}^{6}}\]          done clear
  D)
  \[{{d}^{4}}\] and \[{{d}^{8}}\] done clear
  View Solution play_arrow

• question_answer25)
  Which of the following statement is not true for the reaction given below? \[{{\left[ Cu\,{{({{H}_{2}}O)}_{4}} \right]}^{2+}}+4N{{H}_{3}}\rightleftharpoons {{\left[ Cu{{(N{{H}_{3}})}_{4}} \right]}^{2+}}+4{{H}_{2}}O\]
  A)
  It is a ligand substitution reaction done clear
  B)
  \[N{{H}_{3}}\] is relatively strong field ligand while \[{{H}_{2}}O\] is a weak field ligand done clear
  C)
  During the reaction, there is a change in colour form light blue to dark blue done clear
  D)
  \[{{[Cu{{(N{{H}_{3}})}_{4}}]}^{2+}}\] has tetrahedral structure and is paramagnetic done clear
  View Solution play_arrow

• question_answer26)
  The d-electron configurations of \[C{{r}^{2+}},M{{n}^{2+}},F{{e}^{2+}}\] and \[C{{o}^{2+}}\] are \[{{d}^{4}},{{d}^{5}},{{d}^{6}}\] and \[{{d}^{7}}\] respectively. Which one of the following will exhibit the lowest paramagnetic behaviour? (Atomic no.\[Cr=24,Mn=25,Fe=26,Co=27\]).
  A)
  \[{{[Co{{({{H}_{2}}O)}_{6}}]}^{2+}}\]         done clear
  B)
  \[{{[Cr{{({{H}_{2}}O)}_{6}}]}^{2+}}\] done clear
  C)
  \[{{[Mn{{({{H}_{2}}O)}_{6}}]}^{2+}}\]        done clear
  D)
  \[{{[Fe{{({{H}_{2}}O)}_{6}}]}^{2+}}\] done clear
  View Solution play_arrow

• question_answer27)
  An octahedral complex with molecular composition M.5 \[N{{H}_{3}}.Cl.S{{O}_{4}}\] has two isomers, A and B. The solution of A gives a white precipitate with \[AgN{{O}_{3}}\] solution and the solution of B gives white precipitate with \[BaC{{l}_{2}}\] solution. The type of isomerism exhibited by the complex is:   
  A)
  Linkage isomerism done clear
  B)
  lonisation isomerism done clear
  C)
  Coordinate isomerism done clear
  D)
  Geometrical isomerism done clear
  View Solution play_arrow

• question_answer28)
  Type of isomerism which exists between \[[Pd{{({{C}_{6}}{{H}_{5}})}_{2}}{{(SCN)}_{2}}]\] and \[[Pd{{({{C}_{6}}{{H}_{5}})}_{2}}{{(NCS)}_{2}}]\] is:
  A)
  Linkage isomerism done clear
  B)
  Coordination isomerism done clear
  C)
  lonisation isomerism done clear
  D)
  Solvate isomerism done clear
  View Solution play_arrow

• question_answer29)
  Which of the following complex ions will exhibit optical isomerism? (en = 1, 2-diamine ethane).
  A)
  \[{{[Cr{{\left( N{{H}_{3}} \right)}_{2}}C{{l}_{2}}]}^{+}}\]    done clear
  B)
  \[{{[Co{{\left( en \right)}_{2}}C{{l}_{2}}]}^{+}}\] done clear
  C)
  \[{{[Co{{\left( N{{H}_{3}} \right)}_{4}}C{{l}_{2}}]}^{+}}\]   done clear
  D)
  \[{{[Zn{{\left( en \right)}_{2}}]}^{2+}}\] done clear
  View Solution play_arrow

• question_answer30)
  The complex ion \[{{[Pt(N{{O}_{2}})(Py)(N{{H}_{3}}){{(NH)}_{2}}(N{{H}_{2}}OH)]}^{+}}\] will give
  A)
  2 isomers (Geometrical) done clear
  B)
  3 isomers (Geometrical) done clear
  C)
  6 isomers (Geometrical) done clear
  D)
  4 isomers (Geometrical)   done clear
  View Solution play_arrow

• question_answer31)
  Which of the following complex ions has electrons that are symmetrically filled in both \[{{t}_{2g}}\] and \[{{e}_{g}}\] orbitals?
  A)
  \[{{[Fe{{F}_{6}}]}^{3-}}\]                   done clear
  B)
  \[{{[Mn{{(CN)}_{6}}]}^{4-}}\] done clear
  C)
  \[{{\left[ Co{{F}_{6}} \right]}^{3-}}\]                done clear
  D)
  \[{{[Co{{(N{{H}_{3}})}_{6}}]}^{2+}}\] done clear
  View Solution play_arrow

• question_answer32)
  In \[[Co{{(N{{H}_{3}})}_{6}}]C{{l}_{3}}\], the number of covalent bonds is
  A)
  3                      done clear
  B)
  6      done clear
  C)
  9                                  done clear
  D)
  18 done clear
  View Solution play_arrow

• question_answer33)
  The unpaired electrons in \[Ni{{\left( CO \right)}_{4}}\] are
  A)
  zero                   done clear
  B)
  one   done clear
  C)
  three                 done clear
  D)
  four done clear
  View Solution play_arrow

• question_answer34)
  The shape of \[{{\left[ Cu{{(N{{H}_{3}})}_{4}} \right]}^{2+}}\]  is
  A)
  tetrahedral         done clear
  B)
  square planar done clear
  C)
  pyramidal          done clear
  D)
  octahedral done clear
  View Solution play_arrow

• question_answer35)
  Consider   the   following   complex\[\left[ Co{{\left( N{{H}_{3}} \right)}_{5}}C{{O}_{3}} \right]Cl{{O}_{4}}\] The coordination number, oxidation number, number of d-electrons and number of unpaired d-electrons on the metal are respectively 
  A)
  6,3,6,0                          done clear
  B)
  7,2,7,1 done clear
  C)
  7,1,6,4                          done clear
  D)
  6,2,7,3 done clear
  View Solution play_arrow

• question_answer36)
  Which of the following statements is incorrect?
  A)
  \[{{\left[ MnC{{l}_{6}} \right]}^{3-}}\] is more paramagnetic than \[{{\left[ Mn{{\left( CN \right)}_{6}} \right]}^{3-}}\] done clear
  B)
  Both \[{{[Co{{({{C}_{2}}{{O}_{4}})}_{3}}]}^{3-}}\]and \[{{[Co{{F}_{6}}]}^{3-}}\]are paramagnetic. done clear
  C)
  \[{{[Fe{{(CN)}_{6}}]}^{3-}}\] forms inner orbital complex whereas \[{{\left[ Fe{{F}_{6}} \right]}^{3-}}\] forms outer orbital complex. done clear
  D)
  Both [a] and [b] done clear
  View Solution play_arrow

• question_answer37)
  Which of the following statements related to crystal field splitting in octahedral coordination entities is incorrect?
  A)
  The \[d{{x}^{2}}-{{y}^{2}}\] and \[d{{z}^{2}}\] orbitals has more energy as compared to \[{{d}_{xy}},{{d}_{yz}}\] and \[{{d}_{xz}}\] orbitals. done clear
  B)
  Crystal field splitting energy \[({{\Delta }_{o}})\]  depends directly on the charge of the metal ion and on the field produced by the ligand. done clear
  C)
  In the presence of \[B{{r}^{-}}\] as a ligand the distribution of electrons for \[{{d}^{4}}\] configuration will be \[t_{{{2}_{g}}}^{3},e_{g}^{1},\] done clear
  D)
  In the presence of \[C{{N}^{-}}\] as a ligand \[{{\Delta }_{o}}<P\]. done clear
  View Solution play_arrow

• question_answer38)
  For the reaction of the type \[M+4L\rightleftharpoons M{{L}_{4}}\]
  A)
  larger the stability constant, lower the proportion of \[M{{L}_{4}}\] that exists in solution done clear
  B)
  larger the stability constant, higher the proportion of \[M{{L}_{4}}\] that exists in solution done clear
  C)
  smaller the stability constant, higher the proportion of \[M{{L}_{4}}\] that exists in solution done clear
  D)
  None of the above done clear
  View Solution play_arrow

• question_answer39)
  An octahedral complex of \[C{{o}^{3+}}\] is diamagnetic. The hybridisation involved in the formation of the complex is:
  A)
  \[s{{p}^{3}}{{d}^{2}}\]                    done clear
  B)
  \[ds{{p}^{2}}\] done clear
  C)
  \[{{d}^{2}}s{{p}^{3}}\]                    done clear
  D)
  \[s{{p}^{3}}d\] done clear
  View Solution play_arrow

• question_answer40)
  The correct statement about the magnetic properties of \[{{[Fe{{\left( CN \right)}_{6}}]}^{3-}}\] and \[{{[Fe{{F}_{6}}]}^{3-}}\] is \[\left( Z=26 \right):\]
  A)
  both are paramagnetic. done clear
  B)
  both are diamagnetic. done clear
  C)
  \[{{[Fe{{\left( CN \right)}_{6}}]}^{3-}}\] is diamagnetic, \[{{[Fe{{F}_{6}}]}^{3-}}\] is paramagnetic. done clear
  D)
  \[{{[Fe{{\left( CN \right)}_{6}}]}^{3-}}\] is paramagnetic, \[{{[Fe{{F}_{6}}]}^{3-}}\] is diamagnetic. done clear
  View Solution play_arrow

• question_answer41)
  Consider the coordination compound\[{{[Co{{(N{{H}_{3}})}_{6}}]}^{3+}}\]. In the formation of this complex, the species which acts as the Lewis acid is:
  A)
  \[{{[Co{{(N{{H}_{3}})}_{6}}]}^{3+}}\]         done clear
  B)
  \[C{{l}^{-}}\] done clear
  C)
  \[C{{o}^{3+}}\]                                  done clear
  D)
  \[N{{H}_{3}}\] done clear
  View Solution play_arrow

• question_answer42)
  Among the following species the one which causes the highest \[CFSE,{{\Delta }_{o}}\] as a ligand is:
  A)
  \[C{{N}^{-}}\]             done clear
  B)
  \[~N{{H}_{3}}\] done clear
  C)
  \[{{F}^{-}}\]                            done clear
  D)
  CO done clear
  View Solution play_arrow

• question_answer43)
  Which one of the following complexes will most likely absorb visible light? (At nos. Sc=21, Ti=22, V=23, Zn=30)
  A)
  \[{{[Sc{{({{H}_{2}}O)}_{6}}]}^{3+}}\]         done clear
  B)
  \[{{[Ti{{(N{{H}_{3}})}_{6}}]}^{4+}}\] done clear
  C)
  \[{{[V{{(N{{H}_{3}})}_{6}}]}^{3+}}\]           done clear
  D)
  \[{{[Zn{{(N{{H}_{3}})}_{6}}]}^{2+}}\] done clear
  View Solution play_arrow

• question_answer44)
  Incorrect match is:
  A)
  \[\left[ Rh{{\left( PP{{h}_{3}} \right)}_{3}}Cl \right]:\] Wilkinson's catalyst done clear
  B)
  \[{{\left[ Co{{\left( CO \right)}_{4}} \right]}^{-}}:\]Bond order of \[Co-CO\] bond is greater than one done clear
  C)
  \[[Zn{{\left( N{{H}_{3}} \right)}_{4}}][Be{{\left( OH \right)}_{4}}]\]: colorless complex done clear
  D)
  \[{{[Cr{{\left( CN \right)}_{6}}]}^{3-}}\]: Inner orbital low spin complex done clear
  View Solution play_arrow

• question_answer45)
  Which one of the following complexes is an outer orbital complex?  (Atomic nos.: Mn = 25; Fe = 26; Co = 27, Ni = 28)
  A)
  \[{{[Co{{(N{{H}_{3}})}_{6}}]}^{3+}}\]         done clear
  B)
  \[{{[Mn{{(CN)}_{6}}]}^{4-}}\] done clear
  C)
  \[{{\left[ Fe{{\left( CN \right)}_{6}} \right]}^{4-}}\]         done clear
  D)
  \[{{[Ni{{(N{{H}_{3}})}_{6}}]}^{2+}}\] done clear
  View Solution play_arrow

• question_answer46)
  Which is not \[\pi \] - bonded complex?
  A)
  Zeise's salt done clear
  B)
  Ferrocene done clear
  C)
  Dibenzene chromium done clear
  D)
  Tetraethyl lead done clear
  View Solution play_arrow

• question_answer47)
  Which of the following carbonyls will have the strongest \[C-O\] bond?
  A)
  \[{{[Mn{{\left( CO \right)}_{6}}]}^{+}}\]          done clear
  B)
  \[[Cr{{\left( CO \right)}_{6}}]\] done clear
  C)
  \[{{[V{{\left( CO \right)}_{6}}]}^{-}}\]              done clear
  D)
  \[\left[ Fe{{\left( CO \right)}_{5}} \right]\] done clear
  View Solution play_arrow

• question_answer48)
  In \[Fe{{\left( CO \right)}_{5}}\], the \[Fe-C\] bond possesses
  A)
  ionic character done clear
  B)
  \[\sigma \]-character only done clear
  C)
  \[\pi \]-character done clear
  D)
  both \[\sigma \] and \[\pi \] characters done clear
  View Solution play_arrow

• question_answer49)
  Which of the following does not have a metal- carbon bond?
  A)
  \[Al{{(O{{C}_{2}}{{H}_{5}})}_{3}}\]              done clear
  B)
  \[{{C}_{2}}{{H}_{5}}MgBr\] done clear
  C)
  \[K\left[ Pt\left( {{C}_{2}}{{H}_{4}} \right)C{{l}_{3}} \right]\] done clear
  D)
  \[Ni{{\left( CO \right)}_{4}}\] done clear
  View Solution play_arrow

• question_answer50)
  In the silver plating of copper, \[K[Ag{{\left( CN \right)}_{2}}]\] is used instead of\[AgN{{O}_{3}}\]. The reason is
  A)
  a thin layer of Ag is formed on Cu done clear
  B)
  more voltage is required done clear
  C)
  \[A{{g}^{+}}\] ions are completely removed from solution done clear
  D)
  less availability of \[A{{g}^{+}}\] ions, as Cu cannot displace Ag from \[{{[Ag{{(CN)}_{2}}]}^{-}}\] ion. done clear
  View Solution play_arrow

• question_answer51)
  Pick a poor electrolytic conductor complex in solution
  A)
  \[{{K}_{2}}[PtC{{l}_{6}}]\]                  done clear
  B)
  \[\left[ Co{{\left( N{{H}_{3}} \right)}_{3}} \right]{{\left( N{{O}_{2}} \right)}_{3}}\] done clear
  C)
  \[{{K}_{4}}[Fe{{\left( CN \right)}_{6}}]\] done clear
  D)
  \[\left[ Co{{\left( N{{H}_{3}} \right)}_{4}} \right]S{{O}_{4}}\] done clear
  View Solution play_arrow

• question_answer52)
  Nickel (Z=28) combines with a uninegative monodentate ligand to form a diamagnetic complex \[{{[Ni{{L}_{4}}]}^{2-}}\]. The hybridisation involved and the number of unpaired electrons present in the complex are respectively:
  A)
  \[s{{p}^{3}}\], two                   done clear
  B)
  \[ds{{p}^{2}}\], zero done clear
  C)
  \[ds{{p}^{2}}\], one                 done clear
  D)
  \[s{{p}^{3}}\], zero done clear
  View Solution play_arrow

• question_answer53)
  Which of the following is diamagnetic?
  A)
  \[{{[Fe{{(CN)}_{6}}]}^{3-}}\]   done clear
  B)
  \[{{[Co{{(ox)}_{3}}]}^{3-}}\] done clear
  C)
  \[{{\left[ Fe{{F}_{6}} \right]}^{3-}}\]                done clear
  D)
  \[{{[Co{{F}_{6}}]}^{3-}}\] done clear
  View Solution play_arrow

• question_answer54)
  The magnetic moment of the complex anion \[{{[Cr(NO)(N{{H}_{3}}){{(CN)}_{4}}]}^{2-}}\] is:
  A)
  5.91 BM            done clear
  B)
  3.87 BM done clear
  C)
  1.73 BM            done clear
  D)
  2.82 BM done clear
  View Solution play_arrow

• question_answer55)
  In which of the following octahedral complex species the magnitude of \[{{\Delta }_{\operatorname{o}}}\] will be maximum?
  A)
  \[{{[Co{{({{H}_{2}}O)}_{6}}]}^{2+}}\]         done clear
  B)
  \[{{\left[ Co{{\left( CN \right)}_{6}} \right]}^{3-}}\] done clear
  C)
  \[{{\left[ Co{{\left( {{C}_{2}}{{O}_{4}} \right)}_{3}} \right]}^{3-}}\]    done clear
  D)
  \[{{[Co\,{{(N{{H}_{3}})}_{6}}]}^{3+}}\] done clear
  View Solution play_arrow

• question_answer56)
  The structure of which of the following chloro species can be explained on the basis of \[ds{{p}^{2}}\]hybridization?
  A)
  \[{{\left[ PdC{{l}_{4}} \right]}^{2-}}\]               done clear
  B)
  \[{{[FeC{{l}_{4}}]}^{2-}}\] done clear
  C)
  \[{{[CoC{{l}_{4}}]}^{2-}}\]                 done clear
  D)
  \[{{\left[ NiC{{l}_{4}} \right]}^{2-}}\] done clear
  View Solution play_arrow

• question_answer57)

  \[{{[Ni{{(N{{H}_{3}})}_{6}}]}^{2+}}en\xrightarrow{{}}X+2N{{H}_{3}}\]

  \[[Ni{{\left( N{{H}_{3}} \right)}_{6}}]+2en\xrightarrow{{}}Y+4N{{H}_{3}}\]

  \[[Ni{{\left( N{{H}_{3}} \right)}_{6}}+3en\xrightarrow{{}}Z+6N{{H}_{3}}\]

  Which of them show optical as well as geometrical isomerism?

  A)
  X                                  done clear
  B)
  Y done clear
  C)
  Z                                  done clear
  D)
  All of these done clear
  View Solution play_arrow

• question_answer58)
  50 mL of 0.2 M solution of a compound with empirical formula \[CoC{{l}_{3}}.4N{{H}_{3}}\] on treatment with excess of \[AgN{{O}_{3}}(aq)\] yields 1.435g of\[AgCl\] Ammonia is not removed by treatment with concentrated \[{{H}_{2}}S{{O}_{4}}\]. The formula of the compound is:
  A)
  \[\left[ Co{{\left( N{{H}_{3}} \right)}_{4}} \right]C{{l}_{3}}\] done clear
  B)
  \[\left[ Co\left( N{{H}_{3}} \right)4C{{l}_{2}} \right]Cl\] done clear
  C)
  \[\left[ Co{{\left( N{{H}_{3}} \right)}_{4}} \right]C{{l}_{3}}\] done clear
  D)
  \[\left[ CoC{{l}_{3}}\left( N{{H}_{3}} \right) \right]{{\left( N{{H}_{3}} \right)}_{3}}\] done clear
  View Solution play_arrow

• question_answer59)
  Which of the following compounds is not coloured?
  A)
  \[N{{a}_{2}}[CuC{{l}_{6}}]\]               done clear
  B)
  \[N{{a}_{2}}[CdC{{l}_{4}}]\] done clear
  C)
  \[{{K}_{4}}[Fe{{\left( CN \right)}_{6}}]\]            done clear
  D)
  \[{{K}_{3}}[Fe{{(CN)}_{6}}]\] done clear
  View Solution play_arrow

• question_answer60)
  The geometry of \[Ni{{(CO)}_{4}}\] and \[Ni{{(PP{{h}_{3}})}_{2}}C{{l}_{2}}\] are
  A)
  both square planar done clear
  B)
  tetrahedral and square planar done clear
  C)
  both tetrahedral done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer61)
  Which one is the most likely structure of \[CrC{{l}_{3}}\text{,}6{{H}_{2}}O\] if 1/3 of total chlorine of the compound is precipitated by adding \[AgN{{O}_{3}}\]
  A)
  \[CrC{{l}_{3}}.6{{H}_{2}}O\] done clear
  B)
  \[[Cr{{\left( {{H}_{2}}O \right)}_{3}}C{{l}_{3}}].{{\left( {{H}_{2}}O \right)}_{3}}\] done clear
  C)
  \[\left[ CrC{{l}_{2}}{{\left( {{H}_{2}}O \right)}_{4}} \right]Cl.2{{H}_{2}}O\] done clear
  D)
  \[[CrCl{{({{H}_{2}}O)}_{5}}]C{{l}_{5}}.{{H}_{2}}O\] done clear
  View Solution play_arrow

• question_answer62)
  In the complexes \[{{[Fe{{({{H}_{2}}O)}_{6}}]}^{3+}},{{[Fe{{(CN)}_{6}}]}^{3-}}\], \[{{\left[ Fe{{\left( {{C}_{2}}{{O}_{4}} \right)}_{3}} \right]}^{3-}}\] and \[{{[FeC{{l}_{6}}]}^{3-}}\], more stability is shown by  
  A)
  \[{{[Fe{{({{H}_{2}}O)}_{6}}]}^{3+}}\]          done clear
  B)
  \[{{[Fe{{(CN)}_{6}}]}^{3-}}\] done clear
  C)
  \[{{[Fe{{({{C}_{2}}{{O}_{4}})}_{3}}]}^{3-}}\]          done clear
  D)
  \[{{[FeC{{l}_{6}}]}^{3-}}\] done clear
  View Solution play_arrow

• question_answer63)
  The d-electron configurations of \[C{{r}^{2+}},M{{n}^{2+}},F{{e}^{2+}}\] and \[C{{o}^{2+}}\] are \[{{d}^{4}},{{d}^{5}},{{d}^{6}}\] and \[{{d}^{7}}\] respectively. Which one of the following will exhibit the lowest paramagnetic behaviour? (Atomic no. Cr = 24, Mn = 25, Fe= 26, Co = 27).
  A)
  \[{{[Co{{({{H}_{2}}O)}_{6}}]}^{2+}}\]         done clear
  B)
  \[{{[Cr{{({{H}_{2}}O)}_{6}}]}^{2+}}\] done clear
  C)
  \[{{[Mn{{({{H}_{2}}O)}_{6}}]}^{2+}}\]        done clear
  D)
  \[{{[Fe{{({{H}_{2}}O)}_{6}}]}^{2+}}\] done clear
  View Solution play_arrow

• question_answer64)
  The correct order of ligands in the spectrochemical series is
  A)
  \[C{{l}^{-}}>en>C{{N}^{-}}>NC{{S}^{-}}\] done clear
  B)
  \[C{{N}^{-}}>en>NC{{S}^{-}}>C{{l}^{-}}\] done clear
  C)
  \[NC{{S}^{-}}>C{{N}^{-}}>C{{l}^{-}}>en\] done clear
  D)
  \[en>C{{N}^{-}}>C{{l}^{-}}>NC{{S}^{-}}\] done clear
  View Solution play_arrow

• question_answer65)
  Which of the following paramagnetic ions would exhibit a magnetic moment (spin only) of the order of 5 BM? (At. Nos. Mn = 25, Cr = 24, V = 23, Ti =22)
  A)
  \[M{{n}^{2+}}\] done clear
  B)
  \[T{{i}^{2+}}\]  done clear
  C)
  \[{{V}^{2+}}\]                        done clear
  D)
  \[C{{r}^{2+}}\] done clear
  View Solution play_arrow

• question_answer66)
  Square-planar geometry is shown by
  A)
  \[[PtC{{l}_{2}}{{(N{{H}_{3}})}_{2}}]\]           done clear
  B)
  \[{{[NiC{{l}_{4}}]}^{2-}}\] done clear
  C)
  \[MnO_{4}^{-}\]                      done clear
  D)
  \[CrO{{_{4}^{2-}}^{~}}\] done clear
  View Solution play_arrow

• question_answer67)
  Which molecule/ion among the following cannot act as a ligand in complex compounds?
  A)
  \[C{{H}_{4}}\]             done clear
  B)
  \[CO\]   done clear
  C)
  \[C{{N}^{-}}\]             done clear
  D)
  \[B{{r}^{-}}\] done clear
  View Solution play_arrow

• question_answer68)
  Which one of the following complexes will consume more equivalents of aqueous solution of \[AgN{{O}_{3}}\]?
  A)
  \[N{{a}_{2}}[CrC{{l}_{5}}({{H}_{2}}O)]\] done clear
  B)
  \[N{{a}_{3}}[CrC{{l}_{6}}]\] done clear
  C)
  \[\left[ Cr{{\left( {{H}_{2}}O \right)}_{5}}Cl \right]C{{l}_{2}}\text{ }\!\!~\!\!\text{ }\]  done clear
  D)
  \[\left[ Cr{{\left( {{H}_{2}}O \right)}_{6}} \right]C{{l}_{3}}\] done clear
  View Solution play_arrow

• question_answer69)
  Possible   isomerism   in   complexes \[[Co{{(N{{H}_{3}})}_{3}}{{(N{{O}_{2}})}_{3}}]\] and \[[Co{{(N{{H}_{3}})}_{5}}(N{{O}_{2}})]C{{l}_{2}}\], respectively are:
  A)
  Linkage and optical done clear
  B)
  Geometrical and linkage done clear
  C)
  Optical and ionization done clear
  D)
  Linkage and geometrical done clear
  View Solution play_arrow

• question_answer70)
  Which of the following statements is correct? (Atomic number of Ni = 28)
  A)
  \[Ni{{\left( CO \right)}_{4}}\] is diamagnetic and \[{{[NiC{{l}_{4}}]}^{2-}}\] and  \[{{[Ni{{(CN)}_{4}}]}^{2-}}\] are paramagnetic done clear
  B)
  \[Ni{{(CO)}_{4}}\] and \[{{[Ni{{(CN)}_{4}}]}^{2-}}\] are diamagnetic and \[{{[NiC{{l}_{4}}]}^{2-}}\] is paramagnetic done clear
  C)
  \[Ni{{(CO)}_{4}}\] and \[{{[NiC{{l}_{4}}]}^{2-}}\] are diamagnetic and \[{{[Ni{{(CN)}_{4}}]}^{2-}}\] is paramagnetic done clear
  D)
  \[{{[NiC{{l}_{4}}]}^{2-}}\] and \[{{[Ni{{(CN)}_{4}}]}^{2-}}\] are diamagnetic and \[Ni{{\left( CO \right)}_{4}}\] is paramagnetic done clear
  View Solution play_arrow

• question_answer71)
  For \[[C{{o}_{2}}{{(CO)}_{8}}],\]  what is the total number of metal - carbon bonds and number of metal-metal bonds.
  A)
  10, 1                 done clear
  B)
  8, 2   done clear
  C)
  8, 1                               done clear
  D)
  10, 0 done clear
  View Solution play_arrow

• question_answer72)
  \[[Cr{{({{H}_{2}}O)}_{6}}]C{{l}_{3}}\] (atomic number of \[Cr=24\]) has a magnetic moment of 3.83 BM. The correct distribution of 3d-elections in the chromium present in the complex is
  A)
  \[3d_{xy}^{1},3d_{yz}^{1},3d_{zx}^{1}\]     done clear
  B)
  \[3d_{xy}^{1},3d_{yz}^{1},3d_{{{z}^{2}}}^{1}\] done clear
  C)
  \[3d_{({{x}^{2}}-{{y}^{2}})}^{1},3d_{{{z}^{2}}}^{1},3d_{zx}^{1}\]     done clear
  D)
  \[3d_{xy}^{1},3d_{({{x}^{2}}-{{y}^{2}})}^{1},3d_{xz}^{1}\] done clear
  View Solution play_arrow

• question_answer73)
  \[[NiC{{l}_{2}}{{\{P{{({{C}_{2}}{{H}_{5}})}_{2}}({{C}_{6}}{{H}_{5}})\}}_{2}}]\] exhibits temperature dependent magnetic behaviour (paramagnetic/ diamagnetic). The coordination geometries of \[N{{i}^{2+}}\] in the paramagnetic and diamagnetic states are respectively 
  A)
  tetrahedral and tetrahedral done clear
  B)
  square planar and square planar done clear
  C)
  tetrahedral and square planar done clear
  D)
  square planar and tetrahedral done clear
  View Solution play_arrow

• question_answer74)
  Complexes \[\left[ Co{{\left( N{{H}_{3}} \right)}_{5}}S{{O}_{4}} \right]Br\] and \[\left[ Co{{\left( N{{H}_{3}} \right)}_{5}}Br \right]S{{O}_{4}}\] can be distinguished by
  A)
  conductance measurement done clear
  B)
  using \[BaC{{l}_{2}}\] done clear
  C)
  using \[AgN{{O}_{3}}\] done clear
  D)
  Both [b] and [c] done clear
  View Solution play_arrow

• question_answer75)
  The correct name for the complex ion \[{{[CoCl\left( ONO \right){{\left( en \right)}_{2}}]}^{+}}\] is:
  A)
  chlorobis (ethylenediamine) nitrito-O- cobaltate (III) ion done clear
  B)
  chlorodiethyldiaminenitrito-O-cobalt (III) ion done clear
  C)
  chloronitrito-O-diethyldiamine cobaltate (III) ion done clear
  D)
  chlorobis (ethylenediamine) nitrito-O- cobalt (III) ion done clear
  View Solution play_arrow

• question_answer76)
  Which of the following ions are optically active?
  A)
  I only done clear
  B)
  II only done clear
  C)
  II and III            done clear
  D)
  IV only done clear
  View Solution play_arrow

• question_answer77)
  Which is not a \[\pi \]-acceptor ligand?
  A)
  \[{{I}_{3}}^{-}\]                                 done clear
  B)
  \[N{{O}^{+}}\] done clear
  C)
  \[{{(C{{H}_{3}})}_{3}}P\]                   done clear
  D)
  \[C{{N}^{-}}\] done clear
  View Solution play_arrow

• question_answer78)
  Select the complex in which secondary valency is satisfied before the primary valency.
  A)
  RMgX                            done clear
  B)
  \[[Cr{{\left( N{{H}_{3}} \right)}_{6}}]C{{l}_{2}}\] done clear
  C)
  \[{{K}_{4}}[Fe{{(CN)}_{6}}]\]              done clear
  D)
  \[[Ni{{\left( CO \right)}_{4}}]\] done clear
  View Solution play_arrow

• question_answer79)
  Select the complex that can be reduced most easily.
  A)
  \[Ni{{\left( CO \right)}_{4}}\]                  done clear
  B)
  \[Cr{{\left( CO \right)}_{6}}\] done clear
  C)
  \[V{{\left( CO \right)}_{6}}\]                   done clear
  D)
  \[Fe{{(CO)}_{5}}\] done clear
  View Solution play_arrow

• question_answer80)
  The correct order of ligands in the trans-directing series is
  A)
  \[C{{N}^{-}}>C{{H}_{3}}^{-}>N{{O}_{2}}^{-}>B{{r}^{-}}\] done clear
  B)
  \[C{{N}^{-}}>B{{r}^{-}}>N{{O}_{2}}^{-}>C{{H}_{3}}^{-}\] done clear
  C)
  \[B{{r}^{-}}>N{{O}_{2}}^{-}>C{{N}^{-}}>C{{H}_{3}}^{-}\] done clear
  D)
  \[C{{H}_{3}}^{-}>C{{N}^{-}}>N{{O}_{2}}^{-}>B{{r}^{-}}\] done clear
  View Solution play_arrow

• question_answer81)
  Among the following complexes (K-P)

  \[{{K}_{3}}\left[ Fe{{\left( CN \right)}_{6}} \right]\]          (K),   \[\left[ Co{{\left( N{{H}_{3}} \right)}_{6}} \right]C{{l}_{3}}\text{ }\left( L \right),\]

  \[N{{a}_{3}}\left[ Co{{\left( oxalate \right)}_{3}} \right]\]  (M), \[[Ni{{({{H}_{2}}O)}_{6}}]C{{l}_{2}})(N),\]

  \[{{K}_{2}}[Pt{{\left( CN \right)}_{4}}\left( O \right)\] and \[[Zn{{({{H}_{2}}O)}_{6}}]{{(N{{O}_{3}})}_{2}}(P)\] the

  diamagnetic complexes are

  A)
  K, L, M, N         done clear
  B)
  K, M, O, P done clear
  C)
  L, M, O, P         done clear
  D)
  L, M, N, O done clear
  View Solution play_arrow

• question_answer82)
  \[[C{{o}_{2}}{{(CO)}_{8}}]\] displays:
  A)
  one \[Co-Co\] bond, six terminal CO and two bridging CO done clear
  B)
  one \[Co-Co\] bond, four terminal CO and four bridging CO done clear
  C)
  no \[Co-Co\] bond, six terminal CO and two bridging CO done clear
  D)
  no \[Co-Co\] bond, four terminal CO and four bridging CO done clear
  View Solution play_arrow

• question_answer83)
  In isolated condition \[C-C\] bond length of \[{{C}_{2}}{{H}_{4}}\]is x, than the bond length of a\[C-C\]  bond of  \[{{C}_{2}}{{H}_{4}}\]in Zeise's salt is
  A)
  Greater than x                done clear
  B)
  Less than x done clear
  C)
  Equal to x          done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer84)
  The number of \[\sigma \] and \[\pi \]-bonds in \[F{{e}_{2}}{{(CO)}_{9}}\] respectively, are
  A)
  \[22\sigma \] and \[15\pi \]     done clear
  B)
  \[22\sigma \] and \[16\pi \] done clear
  C)
  \[23\sigma \] and \[15\pi \]     done clear
  D)
  \[15\sigma \] and \[8\pi \] done clear
  View Solution play_arrow

• question_answer85)
  Which of the following type of isomerism is shown by given complex compound?
  A)
  Facial                done clear
  B)
  Meridional done clear
  C)
  Cis                                done clear
  D)
  Both [b] and [c] done clear
  View Solution play_arrow

• question_answer86)
  In solid \[CuS{{O}_{4}}.5{{H}_{2}}O\] copper is coordinated to
  A)
  4 water molecules done clear
  B)
  5 water molecules done clear
  C)
  one sulphate molecule done clear
  D)
  one water molecule done clear
  View Solution play_arrow

• question_answer87)
  A compound contains 1.08 mole of Na, 0.539 mole of Cu and 2.16 mole of F. Its aqueous solution shows osmotic pressure which is three times that of urea having same molar concentration. The formula of the compound is:
  A)
  \[N{{a}_{4}}\left[ Cu{{F}_{6}} \right]\]              done clear
  B)
  \[Na\left[ Cu{{F}_{4}} \right]\] done clear
  C)
  \[N{{a}_{2}}\left[ Cu{{F}_{4}} \right]\]              done clear
  D)
  \[N{{a}_{2}}[Cu{{F}_{3}}]\] done clear
  View Solution play_arrow

• question_answer88)
  Relative to the average energy in the spherical crystal field, the \[{{t}_{2g}}\] orbitals is tetrahedral field is
  A)
  Raised by \[\left( 2/5 \right){{\Delta }_{t}}\] done clear
  B)
  Lowered by \[\left( 2/5 \right){{\Delta }_{t}}\] done clear
  C)
  Raised by \[\left( 3/5 \right){{\Delta }_{t}}\] done clear
  D)
  Lowered by \[\left( 1/5 \right){{\Delta }_{t}}\] done clear
  View Solution play_arrow

• question_answer89)
  For which value of the x, and y, the following square planar compound shows geometrical isomers \[[Pt{{\left( Cl{{)}_{x}}{{\left( Br \right)}_{y}} \right]}^{2-}}\]
  A)
  1, 3                   done clear
  B)
  3, 1   done clear
  C)
  2, 2                               done clear
  D)
  1, 1 done clear
  View Solution play_arrow

• question_answer90)
  The terahedral complex [M[A][B](X)(Y)], where A,B,X and Y are different ligands and M is a metal ion is
  A)
  optically inactive done clear
  B)
  rotate plane polarized light done clear
  C)
  incomplete information done clear
  D)
  can't be said done clear
  View Solution play_arrow

• question_answer91)
  Incorrect match is:
  A)
  \[{{K}^{+}}{{[Pt({{C}_{2}}{{H}_{4}})C{{l}_{3}}]}^{-}}\]: Zeise's salt done clear
  B)
  \[{{\left[ CO{{\left( CO \right)}_{4}} \right]}^{-}}\]: Bond order of \[CO-CO\] bond is greater than one done clear
  C)
  \[{{[V{{(N{{H}_{3}})}_{6}}]}^{3+}}\] absorb visible light done clear
  D)
  \[{{[Cr{{(CN)}_{6}}]}^{3-}}\]: Inner orbital low spin complex done clear
  View Solution play_arrow

• question_answer92)
  Which complex of \[C{{o}^{2+}}\] will have the weakest crystal field splitting -
  A)
  \[{{\left[ CoC{{l}_{6}} \right]}^{4-}}\]              done clear
  B)
  \[{{[Co{{(CN)}_{6}}]}^{4-}}\] done clear
  C)
  \[{{[Co{{(N{{H}_{3}})}_{6}}]}^{2+}}\]         done clear
  D)
  \[{{[Co{{(en)}_{3}}]}^{2+}}\] done clear
  View Solution play_arrow

• question_answer93)
  The complex showing a spin-only magnetic moment of 2.82 B.M. is:
  A)
  \[Ni{{\left( CO \right)}_{4}}\]                  done clear
  B)
  \[{{[NiC{{l}_{4}}]}^{2-}}\] done clear
  C)
  \[Ni{{\left( PP{{h}_{3}} \right)}_{4}}\]               done clear
  D)
  \[{{[Ni{{(CN)}_{4}}]}^{2-}}\] done clear
  View Solution play_arrow

• question_answer94)
  Red precipitate is obtained when ethanol solution of dimethylglyoxime is added to ammoniacal Ni(II). Which of the following statements is not true?
  A)
  Red complex has a square planar geometry. done clear
  B)
  Complex has symmetrical H-bonding done clear
  C)
  Red complex has a tetrahedral geometry. done clear
  D)
  Dimethylglyoxime functions as bidentate ligand. done clear
  View Solution play_arrow

• question_answer95)
  Which of the following statements is correct for the complex \[C{{a}_{2}}[Fe{{(CN)}_{5}}{{O}_{2}}]\] having \[{{t}_{2g}}^{6},{{e}_{g}}^{0}\]electronic configuration?
  A)
  \[{{d}^{2}}s{{p}^{3}}\] hybridised and diamagnetic done clear
  B)
  \[s{{p}^{3}}{{d}^{2}}\] hybridised and paramagnetic done clear
  C)
  \[s{{p}^{3}}{{d}^{2}}\] hybridised and diamagnetic done clear
  D)
  \[{{d}^{2}}s{{p}^{3}}\] hybridised and paramagnetic done clear
  View Solution play_arrow

• question_answer96)
  \[{{[Fe\,{{(en)}_{2}}{{({{H}_{2}}O)}_{2}}]}^{2+}}+en\to \] complex (X). The correct statement about the complex (X) is -
  A)
  it is a low spin complex done clear
  B)
  it is diamagnetic done clear
  C)
  it shows geometrical isomerism done clear
  D)
  [a] and [b] both done clear
  View Solution play_arrow

• question_answer97)
  Which of the following is not chelating agent?
  A)
  thiosulphato       done clear
  B)
  oxalate done clear
  C)
  glycinato            done clear
  D)
  ethylene diamine done clear
  View Solution play_arrow

• question_answer98)
  When \[Hg{{I}_{2}}\] is added to excess of aqueous KI, mercury largely exists as.
  A)
  \[H{{g}_{2}}{{I}_{2}}\]                       done clear
  B)
  \[{{[Hg{{I}_{3}}]}^{-}}\] done clear
  C)
  \[{{[Hg{{I}_{4}}]}^{2-}}\]                   done clear
  D)
  none of these done clear
  View Solution play_arrow

• question_answer99)
  In nitroprusside ion, the iron and NO exist as Fe (II) and \[\overset{+}{\mathop{N}}\,O\] rather than Fe(III) and NO. This can be established by    
  A)
  estimating the concentration of iron done clear
  B)
  estimating the concentration of \[C{{N}^{-}}\] done clear
  C)
  thermally decomposing the compound done clear
  D)
  measuring the solid state magnetic moment done clear
  View Solution play_arrow

• question_answer100)
  The number of geometrical isomers for octahedral \[{{\left[ Co{{\left( N{{H}_{3}} \right)}_{2}}C{{l}_{4}} \right]}^{-}}\], square planar \[AuC{{l}_{2}}Br_{2}^{-}\] and \[{{[Co(N{{O}_{2}}){{(N{{H}_{3}})}_{5}}]}^{2+}}\] are
  A)
  2, 2, 2               done clear
  B)
  2, 2, no isomerism done clear
  C)
  3, 2, 2                             done clear
  D)
  2, 3, no isomerism done clear
  View Solution play_arrow