1. : In Mendeleev’s periodic table, elements are arranged in the increasing order of their
(A) Numbers of neutrons
(B) Atomic number
(C) Atomic weight
(D) Atomic volume
2. : The law of triads was proposed by
(A) Dobereiner
(B) Newlands
(C) Lothar Meyer
(D) Chancourtois
3. : Lothar Meyer plotted a graph showing variation of
(A) Atomic volume with increase in atomic number
(B) Atomic volume with increase in atomic weight
(C) Atomic radii with increase in atomic weight
(D) Atomic weight with increase in atomic number
4. : Elements in the same vertical group of the periodic table have same
(A) Number of electrons
(B) Atomic number
(C) Number of valence electrons
(D) Atomic number
5. : The elements having low ionization energy are
(A) Non metals
(B) Metalloids
(C) Metals
(D) None of A, B, and C
6. : What is the number of elements in each of the long periods of periodic table?
(A) 32
(B) 18
(C) 8
(D) 36
7. : The amount of energy released by absorbing one electron in the valence shell is
(A) Ionization energy
(B) Electronegativity
(C) Electron affinity
(D) Lattice energy
8. : Which block of the periodic table contains maximum number of metals?
(A) s-Block
(B) p-Block
(C) d-Block
(D) f-Block
9. : The element having electronic configuration [Kr] 4d10, 4f14, 5s2, 5p6, 5d1, 6s2 belongs to
(A) s-Block
(B) p-Block
(C) d-Block
(D) f-Block
10. : Which group contains elements that exist as monoatomic molecules?
(A) 1
(B) 2
(C) 14
(D) 18
11. : An element with atomic number 20 is placed in which period of the periodic table?
(A) 4
(B) 3
(C) 2
(D) 1
12. : The decrease in atomic radius is small when we travel from left to right in transition elements. This is due to
(A) Intervening electrons
(B) Valence electrons
(C) Nuclear charge
(D) Number of shells
13. : In the modern periodic table, the period indicates the value of
(A) Atomic number
(B) Atomic mass
(C) Principal quantum number
(D) Azimuthal quantum number
14. : Which of the mentioned elements is more metallic?
(A) P
(B) As
(C) Sb
(D) Bi
15. : What is the highest electronegative element in the periodic table?
(A) Chlorine
(B) Fluorine
(C) Nitrogen
(D) Oxygen
16. : Which of the mentioned does not exhibit the periodicity in properties of an element?
(A) Atomic radius
(B) Ionization energy
(C) N/P ratio
(D) Electron affinity
17. : Which of the mentioned elements has properties like that of P?
(A) Se
(B) Ge
(C) Sb
(D) Te
18. : The most electronegative element of the third period is
(A) F
(B) P
(C) Br
(D) Cl
19. : Which one of the following groups consists entirely of non-metals?
(A) IIA
(B) IVA
(C) VIA
(D) VIIA
20. : Which of the mentioned ions has the highest value of ionic radius?
(A) Li⁺
(B) B³⁺
(C) F⁻
(D) Br⁻
21. : The element radium belongs to which of the following?
(A) Actinide series
(B) Lanthanide series
(C) Alkaline-earth metals
(D) Chalcogens
22. : Which of the mentioned elements does not form any compound?
(A) Neon
(B) Krypton
(C) Xenon
(D) All of them form no compound
23. : Lithium and magnesium exhibit diagonal relationship because they have similar
(A) Ionic radii
(B) Atomic radii
(C) Polarizing power
(D) Atomic volume
24. : The element whose electronic configuration is 1s², 2s², 2p⁶, 3s², 3p⁶, 3d¹⁰, 4s² is a
(A) Metal
(B) Non-metal
(C) Noble gas
(D) Metalloid
25. : Which period of the periodic table is the longest?
(A) Fourth
(B) Seventh
(C) Sixth
(D) Fifth
26. : All are periodic properties excluding _____.
(A) Ionization energy
(B) Electronegativity
(C) Dipole moment
(D) Electron affinity
27. : Which of the mentioned is a chalcogen?
(A) Sulphur
(B) Tellurium
(C) Selenium
(D) All are chalcogens
28. : Which of the mentioned sets of elements does not belong to same group?
(A) Cl, Br, I, At
(B) C, Si, Ga, Sn
(C) N, P, As, Sb
(D) He, Ne, Ar, Kr
29. : Electronegativity of elements while moving across a period from left to right
(A) Decreases
(B) Remains unchanged
(C) Increases
(D) None of A, B, and C
30. : Due to _______ atomic radii decrease from left to right in the periodic table.
(A) Variation in shielding effect
(B) Increase in the nuclear charge
(C) Decrease in the nuclear charge
(D) All A, B, and C
31. : Atomic radii increase down the group. This is due to
(A) Increase in the number of shell
(B) Decrease in shielding effect
(C) Increase in nuclear charge
(D) All A, B, and C
32. : Which of the mentioned factors affect ionization energy?
(A) Shielding effect
(B) Nuclear charge
(C) Atomic radius
(D) All A, B, and C
33. : Which of the mentioned elements have highest value of electron affinity?
(A) O
(B) Se
(C) S
(D) Te
34. : What is the correct order of ionization energy?
(A) Cu < Ag < Au
Ag > Au” onclick=”checkAnswer(‘q34’, ‘Cu < Ag < Au')"> (B) Cu > Ag > Au
Cu < Ag" onclick="checkAnswer('q34', 'Cu < Ag < Au')"> (C) Au > Cu < Ag
Au” onclick=”checkAnswer(‘q34’, ‘Cu < Ag < Au')"> (D) Cu < Ag > Au
35. : Which of the mentioned elements is a metalloid?
(A) As
(B) C
(C) Pb
(D) Mg
36. : Which of the mentioned remains unchanged on descending a group in the periodic table?
(A) Metallic character
(B) Density
(C) Valence electrons
(D) Atomic size
37. : Which of the mentioned has greatest size?
(A) Fe²⁺
(B) Cl⁻
(C) F
(D) Na⁺
38. : In the long form of periodic table, elements are arranged according to which order?
(A) Increasing atomic number
(B) Decreasing atomic number
(C) Increasing atomic mass
(D) Decreasing atomic mass
39. : Which of the mentioned is most basic oxide?
(A) MgO
(B) Al₂O₃
(C) Fe₂O₃
(D) Na₂O
40. : The electron affinity of members of oxygen family is
Se > O” onclick=”checkAnswer(‘q40’, ‘S > Se > O’)”> (A) S > Se > O
S > O” onclick=”checkAnswer(‘q40’, ‘S > Se > O’)”> (B) Se > S > O
Se > S” onclick=”checkAnswer(‘q40’, ‘S > Se > O’)”> (C) O > Se > S
S > Se” onclick=”checkAnswer(‘q40’, ‘S > Se > O’)”> (D) O > S > Se
41. : Be²⁺ is isoelectronic with
(A) Mg²⁺
(B) Na⁺
(C) H⁺
(D) Li⁺
42. : In graph of atomic volume versus atomic weight, the elements corresponding to peaks in the curve belong to
(A) Group 18
(B) Group 1
(C) Group 4
(D) Group 14
43. : What is the correct order of ionic radii for the following ions?
S²⁻ > Cl⁻ > K⁺’)”> (A) S²⁻ < P³⁻ < Cl⁻ < K⁺
S²⁻ > P³⁻ > K⁺” onclick=”checkAnswer(‘q43’, ‘P³⁻ > S²⁻ > Cl⁻ > K⁺’)”> (B) Cl⁻ > S²⁻ > P³⁻ > K⁺
S²⁻ > Cl⁻ > K⁺” onclick=”checkAnswer(‘q43’, ‘P³⁻ > S²⁻ > Cl⁻ > K⁺’)”> (C) P³⁻ > S²⁻ > Cl⁻ > K⁺
Cl⁻ > S²⁻ > P³⁻” onclick=”checkAnswer(‘q43’, ‘P³⁻ > S²⁻ > Cl⁻ > K⁺’)”> (D) K⁺ > Cl⁻ > S²⁻ > P³⁻
44. : The atomic volumes of C, N, O, and F are in which order?
O > N > C” onclick=”checkAnswer(‘q44’, ‘F > O > N > C’)”> (A) F > O > N > C
N > O > F” onclick=”checkAnswer(‘q44’, ‘F > O > N > C’)”> (B) C > N > O > F
N > F > O” onclick=”checkAnswer(‘q44’, ‘F > O > N > C’)”> (C) C > N > F > O
C > O > F” onclick=”checkAnswer(‘q44’, ‘F > O > N > C’)”> (D) N > C > O > F
45. : The ions Se³⁺, Ca²⁺ and K⁺ have same electronic configuration as that of
(A) Neon
(B) Krypton
(C) Argon
(D) Xenon
46. : Which of the mentioned ions is smallest in size?
(A) Br⁻
(B) Cl⁻
(C) F⁻
(D) I⁻
47. : The electron affinity order of the halogens is
Cl > Br > I” onclick=”checkAnswer(‘q47’, ‘F < Cl > Br > I’)”> (A) F > Cl > Br > I
Cl < Br < I" onclick="checkAnswer('q47', 'F < Cl > Br > I’)”> (B) F > Cl < Br < I
Cl > Br > I” onclick=”checkAnswer(‘q47’, ‘F < Cl > Br > I’)”> (C) F > Cl > Br > I
Br > I” onclick=”checkAnswer(‘q47’, ‘F < Cl > Br > I’)”> (D) F < Cl > Br > I
48. : Which of the mentioned is a periodic property?
(A) Ionization energy
(B) Metallic character
(C) Atomic volume
(D) All A, B, and C
49. : Who proposed the Law of octaves?
(A) Lothar Meyer
(B) D.I. Mendeleev
(C) J.W. Dobereiner
(D) J.A.R. Newlands
50. : According to ______, the atomic mass of the middle element is the average of the atomic masses of the other two elements.
(A) Dobereiner
(B) A.E. de Chancourtois
(C) Newlands
(D) Lothar Meyer
51. : Which of the mentioned is a strong reducing agent in aqueous solution?
(A) Na
(B) Li
(C) K
(D) Cs
52. : Which of the mentioned oxides is most acidic?
(A) N₂O₃
(B) CO
(C) BeO
(D) CO₂
53. : Which of the mentioned elements would have the lowest first ionization energy (IE)?
(A) Mg
(B) Ca
(C) Li
(D) Rb
54. : Which of the mentioned has highest electron affinity?
(A) Na
(B) O
(C) O
(D) F
55. : The one with largest size is
(A) Cl⁺
(B) Cl
(C) Cl⁻
(D) Cl³⁺
56. : Which of the mentioned iso-electronic species has the highest ionization energy?
(A) Ne
(B) F⁻
(C) Na
(D) O²⁻
57. : Which of the mentioned iso-electronic ions would require least energy for the removal of electron?
(A) Cl⁻
(B) Ca²⁺
(C) K⁺
(D) Ar
58. : The ionization energy of nitrogen is more than that of oxygen because
(A) Nitrogen atom is smaller in size than oxygen atom
(B) Nitrogen has half-filled p-orbitals
(C) Nitrogen contains less number of electrons
(D) Nitrogen is less electronegative
59. : Highest ionization potential is shown by
(A) Alkali metals
(B) Halogens
(C) Inert gases
(D) Transition metals
60. : Which is the element with highest electron affinity among halogens?
(A) F
(B) Cl
(C) Br
(D) I
61. : Which is the more dense element in the periodic table?
(A) O₈
(B) K
(C) Cr
(D) Ba
62. : The element with the highest ionization potential is
(A) Boron
(B) Carbon
(C) Oxygen
(D) Nitrogen
63. : Which of the mentioned metals exhibits more than one oxidation state?
(A) Na
(B) Fe
(C) Mg
(D) Al
64. : Which of the mentioned has least electron affinity?
(A) Argon
(B) Oxygen
(C) Boron
(D) Nitrogen
65. : Which is the most abundant element on the earth?
(A) Hydrogen
(B) Silicon
(C) Oxygen
(D) Nitrogen
66. : Which of the mentioned generally increases on going from top to bottom in a group?
(A) Electronegativity
(B) Metallic character
(C) Oxidizing behavior
(D) Reducing behavior
67. : Which of the mentioned elements is strongest oxidizing agent?
(A) Cl
(B) I
(C) Br
(D) F
68. : Be has diagonal relationship with
(A) Li
(B) Al
(C) Na
(D) B
69. : Which of the mentioned elements has highest ionization energy?
(A) Ar
(B) Si
(C) Cl
(D) Na
70. : The first ionization energy of Mg is lower than _____ .
(A) Na
(B) Ca
(C) Al
(D) Be
71. : In a period, the element with highest electron affinity belongs to which group?
(A) Group 17
(B) Group 3
(C) Group 1
(D) Group 10
72. : Which of the mentioned element is most electropositive?
(A) B
(B) Be
(C) Li
(D) C
73. : Which of the mentioned ions does not have the electronic configuration same as that of neon?
(A) Ca²⁺
(B) O²⁻
(C) Na⁺
(D) F⁻
74. : Which of the mentioned represents the correct order of ionic radii?
Na⁺ > K⁺ > Li⁺” onclick=”checkAnswer(‘q74’, ‘Li⁺ < Na⁺ < K⁺ < Rb⁺')"> (A) Rb⁺ > Na⁺ > K⁺ > Li⁺
Na⁺ > K⁺ > Rb⁺” onclick=”checkAnswer(‘q74’, ‘Li⁺ < Na⁺ < K⁺ < Rb⁺')"> (B) Li⁺ > Na⁺ > K⁺ > Rb⁺
(C) Li⁺ = Na⁺ = K⁺ = Rb⁺
(D) Li⁺ < Na⁺ < K⁺ < Rb⁺
75. : What is the strongest reducing agent in the periodic table?
(A) Na
(B) K
(C) Li
(D) Rb
76. : The magnitude of electron affinity depends on
(A) Electronic configuration
(B) Nuclear charge
(C) Atomic size
(D) All A, B, and C
77. : What is the correct order of electron affinities of Si, P and Cl?
Si > Cl” onclick=”checkAnswer(‘q77’, ‘Cl > Si > P’)”> (A) P > Si > Cl
P > Si” onclick=”checkAnswer(‘q77’, ‘Cl > Si > P’)”> (B) Cl > P > Si
Si > P” onclick=”checkAnswer(‘q77’, ‘Cl > Si > P’)”> (C) Cl > Si > P
P > Cl” onclick=”checkAnswer(‘q77’, ‘Cl > Si > P’)”> (D) Si > P > Cl
78. : Which of the mentioned elements has highest density?
(A) Ni
(B) Re
(C) Ir
(D) Co
79. : Electron affinities of halogen are in the order
Cl > Br > I” onclick=”checkAnswer(‘q79’, ‘Cl > F > Br > I’)”> (A) F > Cl > Br > I
Br > F > I” onclick=”checkAnswer(‘q79’, ‘Cl > F > Br > I’)”> (B) Cl > Br > F > I
Br > I > F” onclick=”checkAnswer(‘q79’, ‘Cl > F > Br > I’)”> (C) Cl > Br > I > F
F > Br > I” onclick=”checkAnswer(‘q79’, ‘Cl > F > Br > I’)”> (D) Cl > F > Br > I
80. : Which of the mentioned has largest ionic radius?
(A) Li⁺
(B) K⁺
(C) Mg²⁺
(D) Na⁺
81. : Ca ion is isoelectronic with which of the following?
(A) Ar
(B) Na
(C) Mg
(D) Kr
82. : Which of the mentioned group shows highest ionization potential?
(A) Alkali metals
(B) Inert gases
(C) Halogens
(D) Transition metals
83. : Which of the mentioned is most electronegative?
(A) Tin
(B) Silicon
(C) Lead
(D) Carbon
84. : Which is the element having highest electron affinity among halogens?
(A) F
(B) Br
(C) Cl
(D) I
85. : Which of the mentioned is the heaviest element?
(A) U
(B) Zn
(C) Hg
(D) Au
86. : Which of the mentioned elements is not artificial?
(A) Rutherfodium
(B) Bohrium
(C) Lanthanum
(D) Hassium
87. : Ionization potential depends on
(A) Effective nuclear charge
(B) Atomic size
(C) Stability of configuration
(D) All A, B, and C
88. : Which of the mentioned elements has highest heat of atomization?
(A) Silver
(B) Tungsten
(C) Gold
(D) Mercury
89. : Which of the mentioned is a bridge element?
(A) K
(B) C
(C) Be
(D) P
90. : Which one of the following periodic groups consists entirely of metals?
(A) VIIA
(B) IIIA
(C) IIA
(D) 0