MCQ on Transition Elements
Inorganic Chemistry MCQ on Transition Elements
1. The CN of the transition element present in
[Pt Cl NO2 (NH3)4]2-
(a) 2
(b) 6
(c) 4
(d) 8
2. The oxidation number of the central metal atom in [Ni(CO)4] is
(a) 0
(b) 2
(c) 4
(d) 6
3.Group VIB of transition elements contains
(a) Zn Cd Hg
(b) Fe Ru Os
(c) Cr Mo W
(d) Mn Te Re
4.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
Answer (b) S and P block elements
5. The melting points and boiling points up to the middle of 3d- series
(a) Increases
(b) Decreases
(c) Remain same
(d) No regular trend
6. Pure metal
(a) Corrode slowly
(b) Corrode rapidly
(c) Does not corrode easily
(d) None of these
Answer (c) does not corrode easily
7.Compounds attracted by the influence of applied strong magnetic field are called
(a) Diamagnetic
(b) Paramagnetic
(c) Good conductor
(d) Ferromagnetic
8.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
Answer (a) Decreases with increase in atomic number
9. Formation of interstitial compounds makes the transition metals more
(a) soft
(b) Ductile
(c) Malleable
(d) None of the above
10. Paramagnetism is common in
(a) s-block elements
(b) p-block elements
(c) d-block elements
(d) Any of them
11. Transition metals are complexes act as
(a) Lewis acid
(b) Lewis base
(c) Neutral
(d) None of the above
12. 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
13. The density of transition metals in a series
(a) Decreases gradually
(b) Increases gradually
(c) remains constant
(d) May increase or decrease
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