PPSC Chemistry Lecturer Preparation (Test # 11)- Malik Xufyan 03137355727

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PPSC CHEMISTRY CLASS
Test Session
CH: d-Block Elements
Test # 10
For more WhatsApp # 0313-7355727
Topics:
1- General Characteristics
2- Chemistry of 1st
Transition Series
3- Nomenclature
4- Isomerism
General Characteristics
1. The elements in which d or f orbitals are in the process of completion are
a) Outer transition elements
b) Inner transition elements
c) Typical transition elements
d) Transition elements
2. The melting points and boiling points up to the middle of 3d- series
a) Increases
b) Decreases
c) Remain same
d) No regular trend
3. Pure metal
a) Corrode slowly
b) Corrode rapidly
c) Does not corrode easily
d) None of these
4. The correct electronic configuration of Cr is
a) [Ar]4s23d4
b) [Ar] 4s23d4
c) [Ar]4s03d5
d) [Ar]4s13d5
5. Group VIB of transition elements contains
a) Zn Cd Hg
b) Fe Ru Os
c) Cr Mo W
d) Mn Te Re
6. The oxidation state of transition elements is usually
a) Variable
b) Constant
c) Single
d) Infinite

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7. When light is exposed to transition element then electrons jump from lower orbitals
to higher orbitals in
a) Orbitals of f-subshell
b) Orbitals of d-subshell
c) Orbitals of p-subshell
d) Both a & b
8. When a compound of transition element is dissolved in a solution of salt then it pro-
duces
a) Simples ions
b) Complex ions
c) Double salts
d) Strong anions
9. Geometry of the complex compounds usually depends upon
a) type of ligands
b) types of hybridization in the elements of ligands
c) hybridization of central metal
d) All of above
10. In pig iron the concentration of C-atom is
a) 0.12 — 0.25%
b) 2.5 — 4.5%
c) 2.0 — 4.0%
d) 0.25 — 2.5%
11. Which of the following is typical transition metal?
a) Sc
b) Y
c) Cd
d) Co
12. The density of transition metals in a series
a) decreases gradually
b) increases gradually
c) remains constant
d) may increase or decrease
13. In industrial processes, transition elements and their oxides are used as
a) surfactants
b) insecticides
c) catalyst
d) any of them
14. Transition elements exhibit variable valency because they release electrons from
a) ns orbitals
b) np orbitals
c) (n-1)d orbitals
d) (n-1)d & ns orbitals
15. Atomic radii of d-block elements in a series
a) decreases with increase in atomic number

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b) increases with increase in atomic number
c) remains constant
d) none of the above
16. Transition metals are generally coloured because
a) they absorb electromagnetic radiations
b) their penultimate d-subshells are fully filled
c) of d-d transition
d) none of the above
17. Why is there an increase in the atomic radius of transition elements at the end of the
period?
a) Increased electron-electron repulsions
b) Decreased electron-electron repulsions
c) Increase in nuclear charge
d) Increase in atomic mass
18. In the transition elements, the incoming electron occupies (n - 1) d-orbital in
preference to
a) ns
b)(n-1)P
c) np
d) (n-1) s
19. Which of the following element has the highest density among transition metals?
a) Iridium
b) Osmium
c) Scandium
d) Chromium
20. Which of the following is correct order of density?
a) Fe < Ni < Cu
b) Fe < Cu < Au
c) Fe < Hg < Au
d) All are correct
21. Gun metal is an alloy of:
a) Cu and Al
b) Cu and Sn
c) Cu, Zn and Sn
d) Cu, Zn and Ni
22. Silver nitrate produces a black stain on the skin due to
a) being a strong reducing agent
b) its corrosive action
c) formation of complex compound
d) its reduction to metallic silver
23. Which of the following statements is incorrect?
a) Manganese has an abnormally low boiling point
b) Transition elements have low enthalpies of atomisation
c) Transition elements exhibit metallic bonding

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d) Transition metals generally have a high boiling point
Chemistry of 1st Transition Series
24. The 3d transition series contains elements having an atomic number from
a) 21 to 30
b) 21 to 31
c) 22 to 30
d) 21 to 29
25. The anomalous electronic configuration in 3d-series shown by______
a) Cr, Cu
b)Sc, Cr
c) Cr, Zn
d Cr, Mn
26. The abnormal low melting points are shown by
a) Sc, Zn
b) Cr, Fe
c) Mn, Tc
d) Is, pt
27. In 1st transition series which has low M.P
a) Os,
b) Pt
c) Cu
d) Zn
28. The +1 Oxidation state is shown by_______
a) Ru
b) Zn
c) Cu
d) Pt
29. In [(Ti(H2O)6]3+ will absorb yellow green light but its transmitted colour is_______
a) blue
b) yellow
c) Purple
d) red
30. Transition elements that show anomalous configurations in first series are_______
a) Cr and Ni
b) Cu and Co
c) Fe and Ni
d) Cr and Cu
31. The outer electronic configuration of an atom is 3d6 4s2. The atom belongs
to________
a) copper family
b) iron family
c) zinc family

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d) manganese family
32. In the first transition series, the incoming electrons enter_______
a) 3d orbitals
c) 5d orbitals
b) 4d orbitals
d) 6d orbitals
33. Among the following outermost configurations of transition metals, which shows the
highest oxidation state?
a) 3d3 4s2
b) 3d54s1
c) 3d5 4s2
d) 3d64s2
34. Manganese achieves its highest Oxidation state in its compound______
a) MnO2
b) KMnO4
c) Mn2O4
d) KMnO4
35. The most stable oxidation state of iron is _______
a) -3
b) +3
c) +2
d) -2
36. FeSO4 has colour ______
a) green
b) blue
c) violet
d) yellow
37. Complication is shown by__________
a) Au
b) Ag
c) cu
d) all
38. The spin only magnetic moment of Mn+4 iron is nearly
a) 4BM
b) 3BM
c) 6BM
d) 5BM
39. The 3d block elements that exhibits maximum number of oxidation states______
a) Mn
b) Ti
c) Sc
d) Zn
40. The number of unpaired electrons in gaseous species ofMn3+, Cr 3+ and V3+ respec-
tively are:

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a) 4, 4 and 2
b) 3, 3 and 2
c) 4, 3 and 2
d) 3, 3 and 3
Nomenclature
41. According to IUPAC nomenclature sodium nitroprusside dihydrate is named as
a) Sodium pentacyanonitrosylferrate (III)
b) Sodium nitroferrocyanide
c) Sodium nitroferricyanide
d) Sodium pentacyanonitrosylferrate (II)
42. K2 [Cu(CN)4] which one is correct
a) Potassium tetra cyano recuperate
b) Co-ordination number is 2
c) The ligand is positively charged
d) Central atom is present in the anionic sphere
43. Select the correct IUPAC name for: [FeF4(OH2)2]-
a) diaquatetrafluoroiron(III) ion
b) diaquatetrafluoroferrate(III) ion
c) diaquatetrafluoroiron(I) ion
d) diaquatetrafluoroferrate(I) ion
e) none of these
44. Select the correct IUPAC name for: [Co(NH3)6]2+
a) hexammoniacobaltate(II) ion
b) hexaamminecobaltate(II) ion
c) hexammoniacobalt(II) ion
d) hexaamminecobalt(II) ion
e) hexammoniacobalt ion
45. Identify the correct naming for K2[PdCl4].
a) Potassium tetrachlorinepalladium(II)
b) Potassium tetrachlorinepalladate(II)
c) Potassium tetrachloridopalladium(II)
d) Potassium tetrachloridopalladate(II)
46. Which of the following is the correct formulation of the entity according to IUPAC?
a) (Co(CN)6)3-
b) [Co(CN)6]3-
c) [Co (CN)6]3-
d) [Co(CN)6]-3
47. Which of the following ligands will be listed last in a coordination sphere?
a) Cl
b) CO
c) CO3
d) C2O4

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48. Identify the correct naming for K [Fe(CN)6 ].
a) Tripotassium hexacyanidoferrate(III)
b) Potassium hexacyanoferrate(III)
c) Tripotassium hexacyanoferrate(III)
d) Potassium hexacyanidoferrate(III)
49. Identify the correct naming for [Zn(OH)4 ]2-
a) Zinc tetrahydroxide
b) Tetrahydroxozincate(II)
c) Tetrahydroxidozincate(II)
d) Tetrahydroxylzincate(II)
50. Which of the following representation of the complex ion is correct according to
IUPAC?
a) [PtBrCl(NH3)(NO2)]-
b) [PtBrCl(NO2)(NH3)]-
c) [Pt(NH3)BrCl(NO2)]-
d) [Pt(NO2)BrCl(NH3)]-
Isomerism
51. Which type of isomerism exhibits compounds with same chemical formula and
bonds but different spatial arrangement?
a) Optical isomerism
b) Linkage isomerism
c) Structural isomerism
d) Solvate isomerism
52. Which of the following is not a subdivision of structural isomerism?
a) Geometrical isomerism
b) Linkage isomerism
c) Coordination isomerism
d) Ionisation isomerism
53. How many geometrical isomers are possible in [Al(C2o4)3]3-?
a) 0
b) 2
c) 3
d) 4
54. Following structures exhibit which type of isomerism:

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a) Geometrical isomerism
b) Hydrate isomerism
c) Geometrical isomerism
d) Ionization isomerism
55. Type of isomerism exhibited by [Cr(NCS)(NH3)5][ZnCl4]
a) Coordination isomerism
b) Linkage isomerism
c) Ionization isomerism
d) Both coordination and linkage isomerism
56. [Pd (C6H5)2(SCN)2] and [Pd (C6H5)2(NCS)2] are:
a) Linkage isomers
b) Co-ordination isomers
c) ionization isomers
d) Geometrical isomers
57. Which complex is likely to show optical activity:
a) Trans-[CoCl2(NH3)4]+
b) [Cr(H2O)6]3+
c) Cis-[Co(NH3)2(en)2]3+
d) Trans-[Co(NH3)2(en)2]3+
58. The total number of possible isomers of the compound [CuII(NH3)4] [PtIICl4]are:
a) 3
b) 5
c) 4
d) 6
59. Following structures exhibit which type of isomerism:
a) Geometrical isomerism
b) Hydrate isomerism
c) Geometrical isomerism
d) Coordination isomerism
60. The type of isomerism shown by the complex [CoCl2(en)2] is
Geometrical isomerism
Coordination isomerism
Linkage isomerism
Ionization isomerism