Coordination Compounds PYQs Set 18 (PDF)

Set 18 of 20 · Questions 511-540 of 596

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JEE Main Chemistry · Coordination Compounds · Set 18 (Q511-540)

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511.
The denticity of an organic ligand, biuret is :
1. (1) $2$
2. (2) $4$
3. (3) $3$
4. (4) $6$
512.
The anion of acetylacetone (acac) forms $C o (a c a c)$ chelate with $C o^{3 +}$ . The rings of the chelate are
1. (1) $five membered$
2. (2) $four membered$
3. (3) $six membered$
4. (4) $three membered$
513.
The complex that can show fac– and mer– isomers is :
1. (1) $[C o C l_{2} (e n)_{2}]$
2. (2) $[Pt(N H_{3})_{2} C l_{2}]$
3. (3) $[C o (N H_{3})_{4} C l_{2}]^{+}$
4. (4) $[Co (N H_{3})_{3} (N O_{2})_{3}]$
514.
The d-electron configurations of Cr2+, Mn2+, Fe2+ and Co2+ are d4, d5, d6 and d7 respectively. Which one of the following will exhibit minimum paramagnetic behaviour ? (Atomic no. $Cr = 24, Mn = 25, Fe = 26, Co = 27$ ).
1. (1) $[Mn(H2O)6]2+$
2. (2) $[Fe(H2O)6]2+$
3. (3) $[Co(H2O)6]2+$
4. (4) $[Cr(H2O)6]2+$
515.
Red precipitate is obtained when ethanol solution of dimethylglyoxime is added to ammoniacalNi(II). Which ofthe following statements is not true?.
1. (1) $Red complex has a square planar geometry.$
2. (2) $Complex has symmetrical H‐bonding.$
3. (3) $Red complex has a tetrahedral geometry.$
4. (4) $Dimethylglyoxime functions as bidentate ligand.$
516.
An octahedral complex with the formula $CoCl_{3} \cdot nNH_{3}$ upon reaction with excess of $AgNO_{3}$ solution gives 2 moles of $AgCl$ . Consider the oxidation state of $Co$ in the complex is ' $x$ '. The value of " $x + n$ " is______
1. (1) $6$
2. (2) $8$
3. (3) $3$
4. (4) $5$
517.
A reaction of cobalt $(III)$ chloride and ethylenediamine in a $1 : 2$ mole
ratio generates two isomeric products $A$ (violet coloured) and $B$ (green coloured). A can show optical activity, but, $B$ is optically inactive. What type of isomers does $A$ and $B$ represent?
1. (1) $Geometrical isomers$
2. (2) $Coordination isomers$
3. (3) $Linkage isomers$
4. (4) $Ionisation isomers$
518.
The one that will show optical activity is: $(en =$ ethane $1, 2$ - diamine $)$
1. (1)
2. (2)
3. (3)
4. (4)
519.
The number of geometrical isomers for $[Pt (NH_{3})_{2} Cl_{2}]$ is
1. (1) $3$
2. (2) $4$
3. (3) $1$
4. (4) $2$
520.
The compound that inhibits the growth of tumors is:
1. (1) $trans - (Pt (Cl)_{2} (NH_{3})_{2})$
2. (2) $cis - (Pd (Cl)_{2} (NH_{3})_{2})$
3. (3) $cis - (Pt (Cl)_{2} (NH_{3})_{2})$
4. (4) $trans - (Pd (Cl)_{2} (NH_{3})_{2})$
521.
The type of hybridisation and magnetic property of the complex $[M n C l_{6}]^{3 -}$ , respectively, are :
1. (1) $s p^{3} d^{2} and diamagnetic$
2. (2) $d^{2} s p^{3} and diamagnetic$
3. (3) $d^{2} s p^{3} and paramagnetic$
4. (4) $s p^{3} d^{2} and paramagnetic$
522.
The d-electron configuration of Cr2+, Mn2+, Fe2+ and Ni2+ are 3d4, 3d5, 3d6 and 3d8 respectively, which one of the following aqua-complex will exhibit the minimum paramagnetic behaviour ? (At. Nos. $Cr = 24, Mn = 25, Fe = 26, Co = 27$ )
1. (1) $[Cr(H2O)6]2+$
2. (2) $[Mn(H2O)6]+2$
3. (3) $[Fe(H2O)6]2+$
4. (4) $[Ni(H2O)6]2+$
523.
The number of bridging CO ligand(s) and Co-Co bond (s) in $C o_{2} (C O)_{8}$ , respetively are :
1. (1) $4 and 0$
2. (2) $0 and 2$
3. (3) $2 and 1$
4. (4) $2 and 0$
524.
The metal complex that is diamagnetic is (Atomic number : Fe, 26; Cu, 29)
1. (1) $K_{3} [Cu (C N)_{4}]$
2. (2) $K_{2} [Cu (C N)_{4}]$
3. (3) $K_{3} [Fe (C N)_{4}]$
4. (4) $K4[F e C l_{6}]$
525.
The coordination geometry around the manganese in decacarbonyldimanganese( 0 )
1. (1) $Octahedral$
2. (2) $Trigonal bipyramidal$
3. (3) $Square pyramidal$
4. (4) $Square planar$
526.
The Cl - Co - Cl bond angle values in a fac-[Co( $N H_{3}$ ) $_{3} C l_{3}$ ] complex is/are:
1. (1) $90° & 180°$
2. (2) $90°$
3. (3) $180°$
4. (4) $90° & 120°$
527.
The number of isomers possible for $[Pt (en) (NO_{2})_{2}]$ is
1. (1) $3$
2. (2) $1$
3. (3) $4$
4. (4) $2$
528.
The hypothetical complex chlorodiaquatriammine cobalt(III) chloride can be represented as
1. (1) $[C o C l (N H_{3})_{3} (H_{2} O)_{2}] C l_{2}$
2. (2) $[C o (N H_{3})_{3} (H_{2} O) C l_{3}]$
3. (3) $[C o (N H_{2})_{3} (H_{2} O)_{2} C l]$
4. (4) $[C o (N H_{3})_{3} (H_{2} O)_{3}] C l_{3}$
529.
Given below are two statements :
Statement I : $PF_{5}$ and $BrF_{5}$ both exhibit $sp^{3} d$ hybridisation.
Statement II : Both $SF_{6}$ and $(Co (NH_{3})_{6})^{3 +}$ exhibit $sp^{3} d^{2}$ hybridisation.
In the light of the above statements, choose the correct answer from the options given below :
1. (1) $Statement I is true but Statement II is false$
2. (2) $Statement I is false but Statement II is true$
3. (3) $Both Statement I and Statement II are true$
4. (4) $Both Statement I and Statement II are false$
530.
Select the correct IUPAC name of $(Co (NH_{3})_{5} (CO_{3})) Cl$ .
1. (1) $Penta ammoniacarbonate cobalt (III) chloride$
2. (2) $Pentaamminecarbonatecobalt chloride$
3. (3) $Pentaamminecarbonatocobalt (III) chloride$
4. (4) $Cobalt (III) pentaamminecarbonate chloride$
531.
The IUPAC name of the complex $(Co (NH_{3})_{4} Cl_{2}) Cl$ is
1. (1) $dichlorotetramminecobalt(III) chloride$
2. (2) $tetraanmmedichlorocobalt(III) chloride$
3. (3) $tetramminedichlorocobalt(II) chloride$
4. (4) $tetraamminedichlorocobalt(IV) chloride.$
532.
The correct IUPAC name of $(Co (NH_{3})_{3} (NO_{2})_{3})$ is
1. (1) $triamine trinitrito- N -cobalt(III)$
2. (2) $triamminetrinitrito-N-cobalt(II)$
3. (3) $triamminecobalt(III) nitrite$
4. (4) $triamminetrinitrito- N -cobaltate(III).$
533.
The name of complex ion, $[F e (C N)_{6}]^{3 -}$ is
1. (1) $hexacyanitoferrate (III) ion$
2. (2) $tricyanoferrate (III) ion$
3. (3) $hexacyanidoferrate (III) ion$
4. (4) $hexacyanoiron (III) ion.$
534.
Which of the following sequence is correct regarding field strength of ligands as per spectrochemical series?
1. (1) $SCN^{-} < F^{-} < CN^{-} < CO$
2. (2) $F^{-} < SCN^{-} < CN^{-} < CO$
3. (3) $CN^{-} < F^{-} < CO < SCN^{-}$
4. (4) $SCN^{-} < CO < F^{-} < CN^{-}$
535.
$Match the metals () with the coordination compound(s)/ emzyme): Metal Coordination compound(s)/enzyme(s)$
$column I$ $column II$
$(s) ($ $(A) Co$
$(i) Wilkinson catalyst$ $(B) Zn$
$(ii) ChlorophyII$ $(C) Rh$
$(iii) Vitamin B_{12}$ $(D) Mg$
$(iv) Carbonic anhydrase$
1. (1) $(A)-(i);(B)-(ii);(C)-(iii);(D)-(iv)$
2. (2) $(A)-(iv);(B)-(iii);(C)-(i);(D)-(ii)$
3. (3) $(A)-(iii);(B)-(iv);(C)-(i);(D)-(ii)$
4. (4) $(A)-(ii);(B)-(i);(C)-(iv);(D)-(iii)$
536.
The IUPAC name of $(Co (NH_{3})_{5} ONO)^{2 +}$ ion is
1. (1) $pentaamminenitritocobalt(III) ion$
2. (2) $pentaamminenitro cobalt(III) ion$
3. (3) $pentaamminenitrocobalt(IV) ion$
4. (4) $pentaamminenitritocobalt(IV) ion.$
537.
$[F e (C N) 6]^{3 -} should be an inner orbital complex. Ignoring the pairing energy, the value of crystal field stabilization energy for this complex is (-) _________∆_{0} . (Nearest integer)$
538.
$The number of geometrical isomers possible in triamminetrinitrocobalt (III) is X and intrioxalatochromate (III) is Y. Then the value of X+Y is$
539.
$Sum of oxidation state (magnitude) and coordination number of cobalt in Na[Co(bpy) C l_{4}] is__. (Given bpy =)$
540.
$3 moles of metal complex with formula Co (en)_{2} Cl_{3} gives 3 moles of silver chloride on treatment with excess of silver nitrate. The secondary valency ofCo in the complex is(Round off to the nearest integer)$