B.Sc. Second year
Undergraduate degree course Semester fourth Inorganic chemistry paper X
2.Which block elements are more electropositive in modern periodic table?
a) s
b) P
c) d
d) f
3.Which block elements are less electropositive in modern periodic table ?
a) s
b) p
c) d
d) f
4.In modern periodic table, by which name d-block elements are known ?
a) More electropositive elements
b) Transition elements
c) Less electropositive elements
d) Inner transition elements
5.By which reason, element Th is introduce in f-block?
a) According to electronic configuration
b) According to physical properties
c) According to chemical properties
d) Accordingto practical properties
6. When d-block elements are consider as d-block elements?
a) d-orbitalis fully filled in ground state.
b) d-orbital is half filled in ground state.
c) d-orbital is fully filled in all oxidation states.
d) None of the above
7. The d-block, elements start with ____Period.
a) 4
b) 3
c) 5
d) 6
8. The d-block belongs to___ groups to_____ groups.
a) 2 to 12
b) 3 to 11
c) 4to 12
d) 3 to 12
9. The anamolous electronic configuration in 3d-series shown by______
a) Cr, Cu
b) Sc, Cr
c) Cr, Zn
d) Cr, Mn
10.The abnormal low melting points are shown by
a) Sc, Zn
b) Cr, Fe
c) Mn, Tc
d) Is, pt
11. In first transition series which has low Melting point
a) Os,
b) Pt
c) Cu
d) Zn
12. In d-block which has highest density.
a) Os
b) Ru
c) Zn
d) pt
13. The lowest density d-block element is______
a) Zn
b) Y
c) Sc
d) cu
14. The colour of transition metal is due to________
a) presence ot unpaired d-electron
b) d-d transition
c) nature ot ligands at geometry of complex
d) All the above
15. 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
16. In the first transition series, the incoming electrons enter_______
a) 3d orbitals
b) 5d orbitals
c) 4d orbitals
d) 6d orbitals
17. Zinc, cadmium and mercury are
a) d-block elements
b) s-block elements
c) p-block elements
d) f -block elements
18.Among the following outermost configurations of transition metals, which shows the highest oxidation state?
a) 3d3 4s2
b) 3d54s1
c) 3d5 4s2
d) 3d64s2
19. Transition metals
a) exhibit diamagnetism
b) undergo inert pair effect
c) do not form alloys
d) show variable oxidation states
20.The most stable oxidation state of iron is _______
a) -3
b) +3
c) +2
d) -2
21. Which of the following has completely filled d orbital?
a) Sc
b) Mn
c) Cr
d) Zn
22. The first 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
23. The first element of first transition series is
a) copper
b) nickel
c) scandium
d) vanadium
24. 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
25. Atomic radii of d-block elements in a series
a) decreases with increase in atomic number
b) increases with increase in atomic number
c) remains constant
d) none of the above
26. Formation of interstitial compounds makes the transition metals more
a) soft
b) ductile
c) malleable
d) none of the above
27. Paramagnetism is common in
a) s-block elements
b) p-block elements
c) d-block elements
d) none of them
28. Transition metals are complexes act as
a) Lewis acid
b) Lewis base
c) Neutral
d) none of the above
29. 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
30. The density of transition metals in a series
a) decreases gradually
b) increases gradually
c) remains constant
d) may increase or decrease
31. In industrial processes, transition elements and their oxides are used as
a) surfactants
b) insecticides
c) catalyst
d) any of them
32. Transition metals, despite high E° oxidation, are poor reducing agents. The incorrect reason is
a) high heat of vaporization.
b) high ionization energies.
c) low heats of hydration.
d) complex forming nature.
33.Transition elements form alloys easily because they have
a) Same atomic number
b) Same electronic configuration
c) Nearly same atomic size
d) None of the above
34.Which one of the following characteristics of the transition metals is associated with higher catalytic activity?
a) High enthalpy of atomization
b) Paramagnetic behavior
c) Colour of hydrate ions
d) Variable oxidation states
35.The property which is not characteristic of transition metals is
a) variable oxidation states.
b) tendency to form complexes.
c) formation of coloured compounds.
d) natural radioactivity.
36. The location of transition elements is in between
a) lanthanides & actinides
b) s and p block elements
c) Chalcogens and halogens
d) d and f block elements
37. Compounds attracted by applied strong magnetic field are called
a) Diamagnetic
b) Paramagnetic
c) D. Ferromagnetic
d) Good conductor
38. The correct electronic configuration of Cr is
a) [Ar]4s23d4
b) [Ar] 4s23d4
c) [Ar]4s03d5
d) [Ar]4s13d5
39. Which of the following is typical transition metal?
a) Sc
b) Y
c) Cd
d) Co
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 Semester Fourth, Inorganic chemistry paper-X){kind=link}