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Chemistry M.C.Q (1 Marks)

Coordination Compounds · CBSE STD 12 Science (CBSE - English Medium). 37 questions.

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M.C.Q (1 Marks)

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37 questions · auto-graded multiple-choice test.

MCQ 31 Mark
Number of moles of precipitated AgCl on adding excess silver nitrate solution in the solution of one mole of $CoCl _3 .5 NH _3$ is :
  • A
    1
  • ✓
    2
  • C
    3
  • D
    5
Answer
Correct option: B.
2
b
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MCQ 51 Mark
Bidentate ligand is:
  • ✓
    $C _2 O _4{ }^{2-}$
  • B
    $SCN ^{-}$
  • C
    $NH _3$
  • D
    $Cl ^{-}$
Answer
Correct option: A.
$C _2 O _4{ }^{2-}$
a
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MCQ 61 Mark
The coordination compound with tetrahedral geomettry is :
  • A
    $\left[ Ni ( CN )_4\right]^{2-}$
  • ✓
    $\left[ Ni ( CO )_4\right]$
  • C
    $\left[ Fe ( CO )_5\right]$
  • D
    $\left[ Cr ( CO )_6\right]$
Answer
Correct option: B.
$\left[ Ni ( CO )_4\right]$
b
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MCQ 71 Mark
Complex dichloridobis (ethane-1, 2-diamine) platinnum (IV). The formula of nitrate is :
  • A
    $\left[ PtCl _2( en )_2\left( NO _3\right)_2\right]$
  • ✓
    $\left[ PtCl _2( en )_2\right]\left( NO _3\right)_2$
  • C
    $\left[ PtCl _2( en )_2\left( NO _3\right)\right] NO _3$
  • D
    $\left[ Pt ( en )_2\left( NO _3\right)_2\right] Cl _2$
Answer
Correct option: B.
$\left[ PtCl _2( en )_2\right]\left( NO _3\right)_2$
b
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MCQ 81 Mark
Which of the following complexes is not expected to absorb visible light?
  • A
    $\left[ Cr \left( NH _3\right)_6\right]^{2+}$
  • B
    $\left[ Ni ( CN )_4\right]^{2-}$
  • ✓
    $\left[ Fe \left( H _2 O \right)_6\right]^{2+}$
  • D
    $\left[ Ni \left( H _2 O \right)_6\right]^{3+}$
Answer
Correct option: C.
$\left[ Fe \left( H _2 O \right)_6\right]^{2+}$
c
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MCQ 91 Mark
Which of the following does not exhibit paramagnetic characteristics? (Atomic numbers $Ti =22 ; Fe =26$; $Cr =24 ; Cu =29$ )
  • A
    $\left[ Ti \left( H _2 O \right)_6\right]^{3+}$
  • B
    $\left[ Fe ( CN )_6\right]^{3-}$
  • C
    $\left[ Cr \left( NH _3\right)_6\right]^{3+}$
  • ✓
    $\left[ Co \left( NH _3\right)\right]^{3+}$
Answer
Correct option: D.
$\left[ Co \left( NH _3\right)\right]^{3+}$
d
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MCQ 101 Mark
Which of the following has tetrahedral geometry?
  • A
    $\left[ Ni \left( NH _3\right)_6\right]^{2+}$
  • ✓
    $Ni ( CO )_4$
  • C
    $\left[ Ni ( CN )_4\right]^{2-}$
  • D
    $\left[ P ( CN )_4\right]^{2-}$
Answer
Correct option: B.
$Ni ( CO )_4$
b
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MCQ 111 Mark
$\left[ Co \left( NH _3\right)_4\left( NO _2\right)_2\right] Cl$ shows :
  • A
    Bonding, ionization isomerism and optical isomerism
  • ✓
    Bonding, ionization isomerism and geometrical isomerism
  • C
    Ionization, geometrical isomerism and optical isomerism
  • D
    Bonding, geometrical isomerism and optical isomerism
Answer
Correct option: B.
Bonding, ionization isomerism and geometrical isomerism
b
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MCQ 121 Mark
The configuration of a complex of a transition metal is $\left( t _{2 g}\right)^4\left( e _{ g }\right)_2$. The nature of the ligand attached to the metal ion is :
  • A
    strong field
  • ✓
    weak field
  • C
    neutral
  • D
    positive field
Answer
Correct option: B.
weak field
b
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MCQ 131 Mark
The geometry of which of the following complex ions is square planar?
  • A
    $\left[ NiCl _4\right]^{2-}$
  • B
    $\left[ FeCl _4\right]^{2-}$
  • ✓
    $\left[ PtCl _4\right]^{2-}$
  • D
    $\left[ CoCl _4\right]^{2-}$
Answer
Correct option: C.
$\left[ PtCl _4\right]^{2-}$
c
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MCQ 141 Mark
Which of the following is diamagnetic complex ion?
  • A
    $\left[ CoCl _4\right]^{2-}$
  • B
    $\left[ CoF _6\right]^{2-}$
  • ✓
    $\left[ Ni ( CN )_4\right]^{2-}$
  • D
    $\left[ NiCl _4\right]^{2-}$
Answer
Correct option: C.
$\left[ Ni ( CN )_4\right]^{2-}$
c
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MCQ 151 Mark
$\left[ Cr \left( H _2 O \right)_6\right] Cl _3$ has a magnetic moment of $3.83 B, M$. The correct distribution of 3 d electrons in the Cr of the complex is :
  • ✓
    $3 d_{ xy }^1, 3 d_{ yz }^1, 3 d_{ xz }^1$
  • B
    $3 d^1{ }_{x y}, 3 d^1{ }_{x^2-y^2}, 3 d^1 z$
  • C
    $3 d^1{ }_{ xy }, 3 d^1{ }_{ yz }, 3 d^1{ }_{ z ^2}$
  • D
    $3 d_{ x ^2- y ^2}, 3 d_{ z ^2}, 3 d^1{ }_{ xy }$
Answer
Correct option: A.
$3 d_{ xy }^1, 3 d_{ yz }^1, 3 d_{ xz }^1$
a
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MCQ 161 Mark
Which of the following complex ion shows optical isomers?
  • A
    $\left[ ZnCl _4\right]^{2-}$
  • B
    $\left[ Co ( CN )_6\right]^{3-}$
  • C
    $\left[ Cu \left( NH _3\right)_4\right]^{2+}$
  • ✓
    $\left[ Cr \left( C _2 O _4\right)_3\right]^{3-}$
Answer
Correct option: D.
$\left[ Cr \left( C _2 O _4\right)_3\right]^{3-}$
d
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MCQ 171 Mark
Which hybridization occur on Fe in $\left[ Fe ( CN )_6\right]^{4-}$ ?
  • A
    $dsp ^3$
  • B
    $sp ^3 d^2$
  • ✓
    $d ^2 sp ^3$
  • D
    $sp ^3 d^3$
Answer
Correct option: C.
$d ^2 sp ^3$
c
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MCQ 181 Mark
Which of the following is the outer orbital complex?
  • A
    $\left[ Co \left( NH _3\right)_6\right]^{3+}$
  • ✓
    $\left[ CoF _6\right]^{3-}$
  • C
    $\left[ Co ( CN )_6\right]^{3-}$
  • D
    $\left[ Fe ( CN )_6\right]^{3-}$
Answer
Correct option: B.
$\left[ CoF _6\right]^{3-}$
b
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MCQ 191 Mark
Coordination number $( CN )$ of Ni in the complex $Na _2[ Ni ( EDTA )]$ is?
  • A
    1
  • B
    2
  • C
    4
  • ✓
    6
Answer
Correct option: D.
6
d
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MCQ 201 Mark
Which of the following is a bidentate ligand?
  • A
    Ammonia
  • B
    Water
  • ✓
    Ethylenediamine
  • D
    Pyridine
Answer
Correct option: C.
Ethylenediamine
c
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MCQ 211 Mark
The IUPAC name of $\left[ Fe ( CO )_5\right]$ is :
  • A
    Ironpentacarbonyl
  • B
    Pentacarbonyliron (O)
  • C
    Ironpentacarbonmonoxide
  • ✓
    All of the above
Answer
Correct option: D.
All of the above
d
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MCQ 221 Mark
Complexes $\left[ Cr \left( H _2 O \right)_6\right] Cl _3 \quad$ and $\left[ Cr \left( H _2 O \right)_5 Cl \right] Cl _2 \cdot H _2 O$ :
  • A
    bonding isomer
  • B
    ionization isomer
  • ✓
    hydrate isomer
  • D
    coordination isomer
Answer
Correct option: C.
hydrate isomer
c
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MCQ 231 Mark
In which of the following aqueous solutions will free Fe ion be present?
  • A
    $K _3 Fe ( CN )_6$
  • ✓
    $Fe _2\left( SO _4\right)_3$
  • C
    $K _4 Fe ( CN )$
  • D
    $\left( NH _4\right)_2 SO _4 \cdot FeSO _4 \cdot 6 H _2 O$
Answer
Correct option: B.
$Fe _2\left( SO _4\right)_3$
b
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MCQ 241 Mark
Which of the following metal ion, gives coloured solution with $NH _3$ ?
  • ✓
    $Cu ^{2+}$
  • B
    $Zn ^{2+}$
  • C
    $Mg ^{2+}$
  • D
    $Ag ^{+}$
Answer
Correct option: A.
$Cu ^{2+}$
a
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MCQ 251 Mark
What is the number of unpaired electrons in $\left[ Fe ( CN )_6\right]^{2-}$ ?
  • A
    3
  • B
    4
  • ✓
    Zero
  • D
    2
Answer
Correct option: C.
Zero
c
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MCQ 261 Mark
Which of the following complexes does not show geometric isomerism?
  • A
    $\left[ MX _2 L_2\right]$
  • B
    $\left[ MX _2 AB \right]$
  • ✓
    $\left[ ML _4\right]$
  • D
    $[ MABXY ]$
Answer
Correct option: C.
$\left[ ML _4\right]$
c
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MCQ 271 Mark
The complexes $\left[ Co \left( H _2 O \right)_6\right]\left[ CrCl _3\right]$ and $\left[ Cr \left( H _2 O \right)_6\right]\left[ CoCl _6\right]$ are shown :
  • A
    bonding isomerism
  • ✓
    coordination isomerism
  • C
    ionization isomerization
  • D
    solvation isomerism
Answer
Correct option: B.
coordination isomerism
b
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MCQ 281 Mark
Which of the following is not a double salt?
  • A
    $KCl \cdot MgCl _2 \cdot 6 H _2 O$
  • B
    $FeSO _4 \cdot\left( NH _4\right)_2 SO _4 \cdot 6 H _2 O$
  • ✓
    $K _4\left[ Fe ( CN )_6\right]$
  • D
    All of the above
Answer
Correct option: C.
$K _4\left[ Fe ( CN )_6\right]$
c
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MCQ 291 Mark
Which of the following complex ions will have maximum paramagnetic property?
  • A
    $\left[ Cr \left( H _2 O \right)_6\right]^{3+}$
  • B
    $\left[ Fe ( CN )_6\right]^4$
  • ✓
    $\left[ Fe \left( H _2 O \right)_6\right]^{2+}$
  • D
    $\left[ Zn \left( H _2 O \right)_6\right]^{2+}$
Answer
Correct option: C.
$\left[ Fe \left( H _2 O \right)_6\right]^{2+}$
c
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MCQ 301 Mark
Which of the following is a chelate ligand?
  • A
    $CN ^{-}$
  • ✓
    $C _2 O _4{ }^{2-}$
  • C
    $NH _3$
  • D
    $NO _2^{-}$
Answer
Correct option: B.
$C _2 O _4{ }^{2-}$
b
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MCQ 311 Mark
If which ligand is present in the complex, there will be binding isomerism?
  • A
    $NH _3$
  • B
    en
  • ✓
    $NCS ^{-}$
  • D
    $H _2 O$
Answer
Correct option: C.
$NCS ^{-}$
c
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MCQ 321 Mark
What is the isomerism between the complexes $\left[ Co \left( NH _3\right) Br \right] SO _4$ and $\left[ Co \left( NH _3\right)_3 SO _4\right] Br$ ?
  • A
    Bonding
  • B
    Geometric
  • ✓
    Ionization
  • D
    Coordination
Answer
Correct option: C.
Ionization
c
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MCQ 331 Mark
What is the primary valence of Fe in $K _4\left[ Fe ( CN )_6\right]$ ?
  • A
    -4
  • ✓
    +2
  • C
    +6
  • D
    +4
Answer
Correct option: B.
+2
b
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MCQ 351 Mark
What will be the number of halide ions present in the aqueous solution of the complex $\left[ Pt \left( NH _3\right)_3 Cl { }_2 Br \right] Cl$ ?
  • A
    4
  • B
    3
  • ✓
    1
  • D
    2
Answer
Correct option: C.
1
c
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MCQ 361 Mark
Coordination number of Co in the complex $\left[ Co [ en ]_2\left( NH _3\right)_2\right] Br _3( CN )$ is :
  • A
    3
  • B
    4
  • C
    7
  • ✓
    6
Answer
Correct option: D.
6
d
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MCQ 371 Mark
The metal iron present in chlorophyll is :
  • A
    $Fe ^{2+}$
  • B
    $Co ^{2+}$
  • ✓
    $Mg ^{2+}$
  • D
    $Zn ^{2+}$
Answer
Correct option: C.
$Mg ^{2+}$
c
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M.C.Q (1 Marks) - Chemistry STD 12 Science Questions - Vidyadip