Description : Name the following coordination compounds according to IUPAC system of nomenclature :(i) [Co(NH3)4 (H2O)Cl]Cl2 (ii) [CrCl2(en)2]Cl, (en = ethane – 1, 2 – diamine) -Chemistry
Last Answer : (i) [CO(NH3)4 (H2O)Cl]Cl2 Tetraammine aquachlorido cobalt (III) chloride (ii) [CrCl2(en)2]Cl Dichlorobis (ethane-1, 2-diamine) chromium (III) chloride
Description : A complex compound in which the oxidation number of a metal is zero is - (1) K4 [Fe (CN)6] (2) K3 [Fe (CN)6] (3) [Ni (CO)4] (4) [Pl (NH3)4]Cl2
Last Answer : (3) [Ni (CO)4]
Description : Give IUPAC name of the ionization isomer of [Ni(NH3)3NO3]Cl. -Chemistry
Last Answer : IUPAC name : Triammine chlorido nickel (II) nitrate [Ni(NH3)3NO3]Cl
Description : Give IUPAC name of ionization isomer of [Ni(NH3)3NO3]Cl. -Chemistry
Last Answer : IUPAC name : Triammine nitrato nickel (III) chloride
Description : Write the IUPAC name of the following complex : [CO(NH3)6]3+ -Chemistry
Last Answer : Hexaamminecobalt (III) ion.
Description : (i) Write down the IUPAC name of the following complex : [CO(NH3)5Cl]2+ (ii) Write the formula for the following complex : Potassium tetrachloridonickelate (II) -Chemistry
Last Answer : i) [CO(NH3)5Cl]2+ IUPAC name : Pentaammine chlorido cobalt (III) ion (ii) Formula of the complex potassium tetrachloridonickelate (II) K2[NiCl4]
Description : (i) Write down the IUPAC name of the following complex : [Cr(NH3)2CI3(en)]Cl (en = ethylenediamine) (ii) Write the formula for the following complex : Pentaamminenitrito-o-Cobalt (III) -Chemistry
Last Answer : (I) [Cr(NH3)2Cl3(en)]Cl IUPAC name : Diammine dichlorido ethylenediamine chromium (III) chloride. (ii) [Co(NH3)5(ONO)]2+
Description : Write the IUPAC name of the complex [Cr(NH3)4Cl2]+. What type of isomerism does it exhibit? -Chemistry
Last Answer : IUPAC name : Tetraamine dichlorido chromium (III) ion. It exhibits geometrical isomerism.
Description : Explain why [Co(NH3)6]3+ is an inner orbital complex whereas [Ni(NH3)6]2+ is an outer orbital complex. (At. no. Co = 27, Ni = 28) -Chemistry
Last Answer : In [Co(NH3)6]3+, the d-electrons of Co3+ ([Ar]3d6 45°) get paired leaving behind two empty d-orbital and undergo d2sp3 hybridization and hence inner orbital complex, while in [Ni(NH3)6]2+ ... of Ni2+([Ar]3d8 45°) do not pair up and use outer 4d subshell hence outer orbital complex.
Description : Compare the following complexes with respect to structural shapes of units, magnetic behaviour and hybrid orbitals involved in units : [Co(NH3)6]+3, [Cr(NH3)6]3+, Ni(CO)4 (At. nos. : Co = 27, Cr = 24, Ni = 28) -Chemistry
Last Answer : (i) [Co(NH3)6]+3 → Octahedral shape, d2sp3 hybridisation, diamagnetic Formation of [Co(NH2)6]+3 → oxidation state of Co is +3.
Description : Describe the shape and magnetic behaviour of following complexes : (i) [CO(NH3)6]3+ (ii) [Ni(CN)4]2- (At. No. Co = 27, Ni = 28) -Chemistry
Last Answer : (i) [CO(NH3)6]3+ : Orbitals of CO3+ ion : Hybridization : d2sp3 Shape : Octahedral Magnetic behaviour : Diamagnetic (absence of unpaired electrons) (ii) [Ni(CN)4]2-
Description : When a coordination compound CoCl3.6NH3 is mixed with AgNO3, 3 moles of AgCl are precipitated per mole of the compound. Write (i) Structural formula of the complex (ii) IUPAC name of the complex -Chemistry
Last Answer : i) Complex so formed is: CoCl3.6NH3 + AgNO3 → [Co(NH3)6]Cl3 (ii) IUPAC name of complex is: Hexaamminecobalt (III) chloride
Description : When a co-ordination compound CrCl3.6H2O is mixed with AgNO3, 2 moles of AgCl are precipitated per mole of the compound. Write (i) Structural formula of the complex. (ii) IUPAC name of the complex. -Chemistry
Last Answer : (i) The complex formed on mixing a coordination compound CrCl3.6H2O with AgNO3 is as follows CrCl3.6H2O + AgNO3 → [Cr(H2O5)Cl]Cl2. H2O (ii) Pentaaquachloridochromium (III) chloride monohydrate
Description : Write IUPAC name of the complex: -Chemistry
Last Answer : Dichloridobis ethylenediamine cobalt (III) ion.
Description : Write IUPAC name of the complex: [CoCl2(en)2]+ -Chemistry
Last Answer : CoCl2(en)2]+: Dichloridobis(ethylenediamine)Cobalt(III)ion.
Description : Which of the following is more stable complex and why? [Co(NH3)6]3+ and [Co(en)3]3+ -Chemistry
Last Answer : Co(en)3]3+ is more stable complex than [CO(NH3)6]3+ because of chelate effect.
Description : Indicate the types of isomerisms exhibited by the complex [Co(NH3)5 (NO2)] (NO3)2. (At. no. Co = 27) -Chemistry
Last Answer : It shows ionisation isomerism and linkage isomerism.
Description : Write the IUPAC name of [CO (NH3 ) 4 B12] 2 [ZnCl4 ].
Last Answer : Ans. Tetraamminedibromocobalt (III) tetrachlorozincate (II)
Description : . Bromides contained in hot mother liquor is treated with __________ during manufacture of bromine from sea water. (A) SO3 (B) Cl2 (C) NH3 (D) SO2
Last Answer : (B) Cl2
Description : The IUPAC name of `[Ni (NH_(3))_(4)] [NiCl_(4)]` is
Last Answer : The IUPAC name of `[Ni (NH_(3))_(4)] [NiCl_(4)]` is A. ... ) tetrachloronickelate(II) D. Tetraamminenickel(II) tetrachloronickelate(0)
Description : Using IUPAC norms write the formulae for the following: (a) Potassium trioxalatoaluminate (III) (b) Dichloridobis(ethane-l, 2-diamine) cobalt (III) -Chemistry
Last Answer : (a) K3[Al(C2O4)3] (b) [Co(Cl)2(en)2]+
Description : Using IUPAC norms write the formulae for the following: (a) Tris(ethane-1,2-diamine) chromium (III) chloride (b) Potassium tetrahydroxozincate(II) -Chemistry
Last Answer : a) [Cr(en)3] Cl3 (b) K2[Zn(OH)4]
Description : Using IUPAC norms write the formulae for the following: (i) Sodium dicyanidoaurate (I) (it) Tetraamminechloridonitrito-N-platinum (IV) sulphate -Chemistry
Last Answer : (i) Na[Au(CN)2] (ii) [Pt(NH3)4 Cl(NO2)] (SO4)
Description : Write the IUPAC name of the following coordination compound [NiCl4]2-. -Chemistry
Last Answer : Tetrachloridonickelate (II) ion.
Description : Determine the values of equilibrium constant (Kc) and ΔG° for the following reaction : Ni(s) + 2Ag+ (aq) → Ni2+ (aq) + 2Ag(s), E° = 1.05 V (1F = 96500 C mol-1 -Chemistry
Last Answer : According to the formula ΔG° = -nFE° = – 2 × 96500 ×1.05 or ΔG° = -202650 J mol-1 = -202.65 KJ mol-1 Now ΔG° ⇒ -202650 J Mol-1 R = 8.314 J/Mol/K, T = 298 K
Description : Compare the following complexes’ with respect to structural shapes of units, magnetic behaviour and hybrid orbitals involved in units : (i) [Ni(CN)4]2- (ii) [NiCl4]2- (iii) [CoF6]3- [At. Nos. : Ni = 28; Co = 27] -Chemistry
Last Answer : (i) [Ni(CN)4]2- Shape : Octahedral outer orbital complex Hybridisation : sp3d2 Magnetic behaviour : Paramagnetic (4 unpaired electrons)
Description : Compare the following complexes with respect to their shape, magnetic behaviour and the hybrid orbitals involved : (i) [CoF4]2- (ii) [Cr(H2O)2(C2O4)2]– (iii) [Ni(CO)4] (Atomic number : Co = 27, Cr = 24, Ni = 28) -Chemistry
Last Answer : (i) [COF4]2_ : Tetrafluorido cobalt (III) ion Coordination number = 4 Shape = Tetrahedral Hybridisation = sp3 Important Questions for Class 12 Chemistry Chapter 9 Coordination Compounds Class 12 Important Questions 7
Description : A cationic complex has two isomers A & B. Each has one Co3+, five NH3 , one Br and one SO4 2 . A gives a white precipitate with BaCl2 solution while B gives a yellow precipitate with AgNO3 ... are the possible structures of the complexes A and B ? (a) Will the two complexes have same colour ?
Last Answer : (a) [CO (NH3 ) 5 Br] SO4 and [CO (NH3 ) 5 SO4 ] Br (b) NO
Description : The IUPAC name of the complex `[PT(en)(NH_(3))(cl)_(2)(ONO)][Ag(CN)_(2)]` is :
Last Answer : The IUPAC name of the complex `[PT(en)(NH_(3))(cl)_(2)(ONO)][Ag(CN)_(2 ... (ethane-1,2-diammine) nitritioplatinum(IV) dicyanoargentate (I)
Description : IUPAC name of complex ion `[CrCl_(2)(ox)_(2)]^(3-)` is
Last Answer : IUPAC name of complex ion `[CrCl_(2)(ox)_(2)]^(3-)` is A. ... ) C. dichorodioxalatochromate(III) D. bisoxalaeodichlorochromate (III)
Description : The IUPAC name of complex `[Cu(en)_(2)(H_(2)O)_(2)]^(22+)`
Last Answer : The IUPAC name of complex `[Cu(en)_(2)(H_(2)O)_(2)]^(22+)` A. ethylene ... C. diaquobisdietyleamineCU(II)ion D. diaquobis(ethylenediamine)cuprate(II)
Description : IUPAC name of complex `K_(3)[Al(C_(2)O_(4))_(3)]` is
Last Answer : IUPAC name of complex `K_(3)[Al(C_(2)O_(4))_(3)]` is A. potassium ... C. potassium trioxalatealuminium(II) D. potassium trioxalatealuminium(III)
Description : As per IUPAC nomenclature, the name of the complex `[Co(H_(2)O)_(4) (NH_(3))_(2)] Cl_(3)` is
Last Answer : As per IUPAC nomenclature, the name of the complex `[Co(H_(2)O)_(4) ( ... (III) chloride D. Diamminetetraaquacobalt (III) chloride
Description : For the complex `K_(2)[Cr(NO)(NH_(3))(CN)_(4)],mu=1.73 BM`. (i) Write IUPAC name. (ii) What will be structure ? (iii) How many unpaired electrons are
Last Answer : For the complex `K_(2)[Cr(NO)(NH_(3))(CN)_(4)],mu=1.73 BM`. (i) Write IUPAC name. ... the complex. (vi) What will be the hybridisation of the complex.
Description : EAN of [Ni(CO)4] complex is? a) 36 b) 33 c) 35 d) 34
Last Answer : a) 36
Description : `Ni^(+2)` form a complex inon in water having the formula `[Ni(H_(2)O)_(6)]^(+2)`. How many of the following statement are true for the complex ion ?
Last Answer : `Ni^(+2)` form a complex inon in water having the formula `[Ni(H_(2)O)_(6)]^(+2)`. How many of ... )` (x) Effective atomic number of `Ni^(+2)` is 36.
Description : Which of the following has highest melting point? Ni, Fe, Pt, W. -Chemistry 9th
Last Answer : i think all are equal
Description : Which of the following is heaviest metal? Pb, As, Al, Ni -Chemistry 9th
Last Answer : lead(pb) hope this helps u
Description : The magnetic moment for two complexes of empirical formula `Ni(NH_(3))_(4)(NO_(3))_(2).2H_(2)O` is zero and 2.84 BM respectively. The second complex i
Last Answer : The magnetic moment for two complexes of empirical formula `Ni(NH_(3))_(4)(NO_(3))_(2 ... . D. It produces three-fold freezing point depression.
Last Answer : The magnetic moment for two complexes of empirical formula `Ni(NH_(3))_(4)(NO_(3))_(2).2H_(2)O` is zero and ... (H_(2)O)_(2)](NO_(3))_(2)`, octahedral
Last Answer : The magnetic moment for two complexes of empirical formula `Ni(NH_(3))_(4)(NO_(3))_(2).2H_(2)O` is zero ... two B. zero, zero C. two, zero D. two ,two
Description : Dimethyl glyoxime forms a square planard complex with `Ni^(2+)`. This complex should be
Last Answer : Dimethyl glyoxime forms a square planard complex with `Ni^(2+)`. This complex should ... paramagnetic having 2 unpaired electrons D. ferromagnetic .
Description : The correct statement on the isomerism associated with the following complex ions , `(a) [Ni(H_(2)O)_(5)NH_(3)]^(2+), (b) [Ni(H_(2)O)_(4)(NH_(3))_(2)]
Last Answer : The correct statement on the isomerism associated with the following complex ions , `(a) [Ni(H_( ... a) and (b) show geometrical and optical isomerism
Description : Geometrical shapes of the complex formed by the reaction of `Ni^(2+)` with `Cl^(Θ),CN^(Θ)` and `H_(2)O` are :
Last Answer : Geometrical shapes of the complex formed by the reaction of `Ni^(2+)` with `Cl^(Θ) ... and octahedral D. octahedral, square planar and octahedral
Description : `Co^(2+)(aq.)+SCN^(-) (aq.) to "Complex"(X)` `Ni^(2+)(aq.) +"Dimethylglyoxime" overset(NH_(4)OH) to "Complex"(Y)` The coordination number of cobalt an
Last Answer : `Co^(2+)(aq.)+SCN^(-) (aq.) to "Complex"(X)` `Ni^(2+)(aq.) +"Dimethylglyoxime" overset(NH_ ... (Y) is diamagnetic D. (X) and (Y) both are diamagnetic.
Last Answer : `Co^(2+)(aq.)+SCN^(-) (aq.) to "Complex"(X)` `Ni^(2+)(aq.) +" ... both tetrahedral C. square planar and tetrahedral D. both square planar.
Last Answer : `Co^(2+)(aq.)+SCN^(-) (aq.) to "Complex"(X)` `Ni^(2+)(aq.) +" ... . tetrathiocyanoato-S-cobaltate(III) and bis(dimethylglyoximato) nickel (II).
Description : For the complex [Fe(en)2Cl2], Cl, (en = ethylene diamine), identify (i) the oxidation number of iron, (ii) the hybrid orbitals and the shape of the complex, (iii) the magnetic behaviour of the complex, (iv) ... an optical isomer also, and (vi) name of the complex. (At. no. of Fe = 26) \ -Chemistry
Last Answer : i) [Fe(en)2Cl2] Cl or x + 0 + 2 (-1) + (-1) = 0 x + (- 3) = 0 or x = + 3 ∴ Oxidation number of iron, x = + 3 (ii) The complex has two bidentate ligands and two ... )2Cl2] Cl, only cis-isomer shows optical isomerism. (vi) Name of complex: Dichloridobis (ethane-1, 2- diamine) Iron (III) chloride
Description : How is the stability of a co-ordination compound in solution decided ? How is the dissociation constant of a complex defined? -Chemistry
Last Answer : Stability of a complex in solution means the measure of resistance to the replacement of a ligand by some other ligand. This stablility can be expressed in terms of equilibrium constant. Let the ... is its tendency to donate electron pair and therefore, more is the stability of the complex.