PERIODIC TABLEPART- 1
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Which of the following is not a Doeberiner
triad -
(A) Li, Na, K (B) Mg, Ca, Sr
(C) Cl, Br, I (D) S, Se, Te
01
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Which of the following set of elements
obeyes Newland’s octave rule -
(A) Na, K, Rb (B) F, Cl, Br
(C) Be, Mg, Ca (D) B, Al, Ga
02
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Which is not anomalous pair of elements in
the Medeleeves periodic table -
(A) Ar and K (B) Co and Ni
(C) Te and I (D) Al and Si
03
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Elements which occupied position in the lother
meyer curve, on the peaks, were -
(A) Alkali metals
(B) Highly electro positive elements
(C) Elements having large atomic volume
(D) All
04
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Atomic no. is the base of -
(i) Lother meyer curve
(ii) Newland octave rule
(iii) Modern periodic table
(iv) Doeberiener triad rule
(v) Long form of periodic table
(A) (i), (ii), (iv) (B) (iii), (v)
(C) (i), (iv) (D) (i), (iii), (v)
05
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Justification of putting H in VII A group is -
(A) H is gas
(B) H is non metal
(C) It form NaH like salt
(D) It has ortho and para allotropes
06
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The discovery of which of the following group
of elements gave a death blow to the Newlands
Law -
(A) Inert gases
(B) Alkali metals
(C) Transuranic element
(D) Halogens
07
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In the general electronic configuration -
(n – 2)f1–14 (n – 1)d0–1 ns2, if value of n = 7 the
configuration will be -
(A) Lanthenides
(B) Actinides
(C) Transition elements
(D) None
08
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Three dimensional periodic table was given
by-
(A) De-Broglie
(B) De-Chan Chortois
(C) Mendeleaf
(D) Newland
09
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In the Doberiener’s triad all three element
have same -
(A) Electronic configuration
(B) Properties
(C) Number of shells
(D) (1) & (2) both
10
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Which statement is wrong for the long form of
periodic table -
(A) Number of periods are 7 and groups 18
(B) No. of valence shell electrons in a period are
same
(C) IIIrd B group contains 32 elements
(D) Lanthanides and actinides are placed in same
group
11
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Which of the following statement is false -
(A) Elements of ns2np6 electronic
configuration lies in 1st to 6th period
(B) Typical elements lies in 3rd period
(C) The seventh period will accommodate
thirty two elements
(D) Boron and silicon are diagonally related
12
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The elements which occupy the peaks of the
atomic volume curve are -
(A) Fe, Co, Ni (B) Cl, Br, I
(C) K, Rb, Cs (D) Ne, Ar, Kr
13
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Which of the following set of elements
belongs to same period -
(A) Zn, Cd, Hg (B) Fr, Ra, U
(C) K, Ca, Ag (D) None
14
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In 6th period of the modern periodic table,
electronic energy levels is in the order -
(A) 6s, 4f, 5d, 6p
(B) 6s, 6p, 4f, 5d
(C) 5f, 5d, 6s, 6p
(D) None
15
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The screening effect of d-electrons is -
(A) Equal to the p-electrons
(B) Much more than p-electrons
(C) Same as f-electrons
(D) Less than p-electrons
16
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In which of the following compounds
manganese show maximum radius -
(A) MnO2 (B) KMnO4
(C) MnO (4) K3[Mn(CN)6]
17
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Arrange the following in order of increasing
atomic radii Na, Si, Al, Ar -
(A) Na < Si < Al < Ar
(B) Si < Al < Na < Ar
(C) Ar < Al < Si < Na
(D) Na < Al < Si < Ar
18
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Atomic radii of Fluorine and Neon in
Angstrom units are given by -
(A) 0.72, 1.60
(B) 1.60, 1.60
(C) 0.72, 0.72
(D) None of these
19
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3 students Ram, Shyam and Raj measured the radius of an
element A. The values of their practical were not same
(Ram = 110 nm, Shyam = 190 nm and Raj = 108 nm).
Their teacher explained that their measurement were
correct by saying that the recorded values are -
(A) Metalic, vanderwall and covalent radii respectively
(B) Covalent, Metallic and Vander wall radii respectivel
(C) Vander wall, Metallic and covalent radii respectively
(D) None of the above
20
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Which statement is false :
(A) Screening effect increases down the
group
(B) Zeff increases down the group
(C) Zeff. increases in a period
(D) All
21
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Which group of atoms have nearly same
atomic radius :
(A) Na, K, Rb, Cs
(B) Li, Be, B, C
(C) Fe, Co, Ni
(D) F, Cl, Br, I
22
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Which of the following order of radii is
correct
(A) Li < Be < Mg
(B) H+ < Li+ < H–
(C) O < F < Ne
(D) Na+ > F– > O–2
23
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The radius of potassium atom is 0.203 nm. The
radius of the potassium ion in nanometer will
be
(A) 0.133 (B) 0.231
(C) 0.234 (D) 0.251
24
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Which has the lowest anion to cation size
ratio
(A) LiF (B) NaF
(C) CsI (D) CsF
25
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Which electronic configuration of an atom
is smallest in size
(A) 3s2
(B) 3s23p3
(C) 3s1
(D) 3s23px2py
2pz1
26
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Spot the incorrect order of atomic radii
(A) rCu > Zn (B) rCl > F
(C) rP > S (D) rSc > Ti
27
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The best reason to account for the general tendency of
atomic diameters to decrease as the atomic numbers
increase within a period of the periodic table is the fact that
(A) Outer electrons repel inner electrons
(B) Closer packing among the nuclear particles is achieved
(C) The number of neutrons increases
(D) The increasing nuclear charge exerts a greater
attractive force on the electrons
28
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In which of the following compound,
distance between two nuclei is maximum
(A) CsF (B) KI
(C) CsI (D) LiI
29
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Incorrect statement is
(A) Atomic size Zeff
(B) Atomic size negative charge
(C) Atomic size
(D) Atomic size Screening effect
30
orderBond
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