Question No:1
The general electronic configuration of d-block elements is
[A] ns1-2 (n-d1-10
[B] ns2(n-1)d1 (n-f1-14–
[C] ns1-2 (n-1)d1-9
[D] ns1-2 np6 (n-1)d1-10
Question No:2
Identify the correctly matched set among the following
[A] Scandium-d-block-representative element
[B] Lanthanum – d-block-inner transition element
[C] Cerium – f – block – transition element
[D] Actinium – d – block – transition element
Question No:3
The representative elements get the nearest inert gas configuration
[A] By losing electrons
[B] By gaining electrons
[C] By sharing electrons
[D] By losing or gaining or sharing electrons
Question No:4
In transition elements, the shells that are incompletely filled
[A] Ultimate shell only.
[B] Penultimate shell only
[C] Both ultimate & penultimate shells
[D] Outermost three shells
Question No:5
The characteristic properties of transition elements are due to
[A] Unpaired electrons in d-subshell
[B] d-orbitals have five fold degeneracy
[C] Presence of 2 nodal planes for d-orbital
[D] Because they belong to d-block
Question No:6
Rare earths are generally
[A] Actinides
[B] f-block elements
[C] Inner transition elements
[D] Lanthanides
Question No:7
Lanthanum belongs to
[A] s-block
[B] p-block
[C] d-block
[D] f-block
Question No:8
In the periodic table transition elements begin with
[A] Scandium
[B] Zinc
[C] Copper
[D] Mercury
Question No:9
Inert gas element which has a different valence shell configuration
[A] Xe
[B] Ne
[C] Kr
[D] He
Question No:10
Atomic numbers of actinides are
[A] 57 to 71
[B] 80 to 103
[C] 58 to 71
[D] 90 to 103
Question No:11
Most of the non-metals are present in the long form of the periodic table in
[A] p-block
[B] f-block
[C] d-block
[D] s-block
Question No:12
Metal used as catalyst in the hydrogenation of vegetable oils
[A] Iron
[B] Molybdenum
[C] Nickel
[D] Sodium
Question No:13
The 4f-subshell is successively filled for
[A] Rare earths
[B] Rare gases
[C] Transition metals
[D] Alkaline earth metals
Question No:14
The role of ‘Molybdenum’ in Haber’s synthesis is
[A] A positive catalyst
[B] A negative catalyst
[C] Poison for catalyst
[D] Promoter for catalyst
Question No:15
The period in which s-block, p-block and d-block elements are present
[A] 1
[B] 6
[C] 7
[D] 3
Question No:16
Elements of p-block are
[A] Only non-metals .
[B] Only metalloids
[C] Metalloids and non-metals
[D] Metalloids, non-metals and metals
Question No:17
The following ion is colourless in aqueous solution
[A] Ca2+
[B] Sc3+
[C] Zn2+
[D] all the above
Question No:18
Which of the following configuration corresponds to an inert gas?
[A] 1s2 2s2 2p5
[B] 1s2 2s2 2p6
[C] 1s22s1
[D] 1s2 2s2 2p6 3s1
Question No:19
The rare gas that is most abundant in the atmosphere is
[A] He
[B] Ne
[C] Ar
[D] Kr
Question No:20
In lanthanides, the differentiating electron enters into
[A] d – subshell
[B] f – subshell
[C] p – subshell
[D] s – subshell