Q.1
Which of the following has the smallest size? [ CBSE PMT 1996]
  • a) Na+
  • b) Mg2+
  • c) Cl-
  • d) F-
Q.2
Which of the following species has lowest ionization potential? [ Haryana CEET 1996]
  • a) O
  • b) O2
  • c) O2+
  • d) O2-
Q.3
Which of the following elements does not belong to first transition series? [ MP PMT 1995]
  • a) Fe
  • b) V
  • c) Ag
  • d) Cu
Q.4
In the periodic table, on moving along a period, the ionization potential? [ CPMT 1989]
  • a) Increases from left to right
  • b) Remains unchanged
  • c) First increases and then decreases
  • d) Decreases from left to right
Q.5
Ionization potential is lower for .. [ CPMT 1989]
  • a) Halogens
  • b) Inert gases
  • c) Alkaline earth metals
  • d) Alkali metals
Q.6
One of the following has greatest electron affinity. identify it. [ BHU 1994]
  • a) F
  • b) Cl
  • c) I
  • d) Br
Q.7
Two which block is related an element having electronic configuration 1s22s22p63s23p63d104s1 [ MP PMT 1995]
  • a) s -block
  • b) p - block
  • c) d -block
  • d) f- block
Q.8
A transition element X has the configuration [Ar]d4 in its +3 oxidation state. Its atomic number is .. [ CBSE PMT 1996]
  • a) 25
  • b) 26
  • c) 22
  • d) 19
Q.9
The property of attracting electrons by the halogen atoms in a molecules is called.. [ CPMT 1996]
  • a) Ionization potential
  • b) Electron affinity
  • c) Electronegativity
  • d) Electronic attraction
Q.10
Alkali metals in each period have? [ MP PMT 1995]
  • a) Smallest size
  • b) Lowest ionization potential
  • c) Highest ionization potential
  • d) Highest electronegativity
Q.11
Electronegativity is a measure of capacity of an atom to ... [ CPMT 1989]
  • a) Attract electrons
  • b) Attract protons
  • c) Repel electrons
  • d) Repel protons
Q.12
For any given element, the second ionization potential will be ... the first ionization potential? [ Bihar CEE 1995]
  • a) Less than
  • b) Higher than
  • c) same
  • d) none of these
Q.13
Which one of the following is correct order of increase of size .. [ IIT 1990]
  • a) Mg
  • b) Na+ < Al < Mg < F-
  • c) Na+ < F- < Al < Mg
  • d) Na+ < F- < Mg < Al
Q.14
Variable valency is generally exhibited by .. [ DOPMT 1984]
  • a) Representative elements
  • b) Transition elements
  • c) Non-metallic elements
  • d) Metallic elements
Q.15
Arrange in the increasing order atomic radii of following elements O, C, F, Cl, Br .. [ AFMC 1994]
  • a) F, O, C, Cl, Br
  • b) F, C, O, Cl, Br
  • c) F, C, Br, O, C
  • d) C, O, F, Cl, Br
Q.16
The hydride ion is isoelectronic with .. [ AFMC 1995]
  • a) Li
  • b) He+
  • c) He
  • d) Be
Q.17
In the following four elements, the ionization potential of which one is the highest .. [ BHU 1994]
  • a) Argon
  • b) Barium
  • c) Cesium
  • d) Oxygen
Q.18
Of the following elements, which one has the highest electronegativity .. [ CPMT 1989]
  • a) Li
  • b) Cr
  • c) At
  • d) F
Q.19
In which of the following groups when He is placed, its all the properties are satisfied? .. [ Hariyana CEET 2000]
  • a) With alkali metals
  • b) With halogens
  • c) With inert gases
  • d) None of these
Q.20
Which of the order for ionization energy is correct? [ CPMT 1999]
  • a) Be < B < C < N < O
  • b) B < Be < C < O < N
  • c) Be > B > C > N > O
  • d) B < Be < N < C < O
Q.21
Which of the following have least electron affinity? [ AFMC 2000]
  • a) Oxygen
  • b) Argon
  • c) Nitrogen
  • d) Boron
Q.22
Electron configuration of most electronegative element is ... [ BHU 2000]
  • a) 1s2 2s2 2p4 3s1
  • b) 1s2 2s2 2p6 3s2 3p5
  • c) 1s2 2s2 2p5
  • d) 1s2 2s2 2p6 3s2 3p6
Q.23
Which of the following is not paramagnetic? [ CBSE PMT 1998][At.No. of Be=4, Ne=10, As=33 , Cl=17]
  • a) Cl-
  • b) Be-
  • c) Ne2+
  • d) As+
Q.24
The element with highest electron affinity among halogens is .. [ AFMC 2001]
  • a) F
  • b) Cl
  • c) Br
  • d) I
Q.25
Which of the following is the smallest cation? [ MP PMT 2000]
  • a) Na+
  • b) Mg2+
  • c) Ca2+
  • d) Al3+
Q.26
Which one of the following is correct order of the size of iodine species? [ CBSE PMT 1997]
  • a) I > I- > I+
  • b) I > I+ > I-
  • c) I+ > I- > I
  • d) I- > I > I+
Q.27
Which of the following pairs of atomic numbers represents elements belonging to the same group? [ Manipal PMT 2001]
  • a) 11 and 20
  • b) 12 and 30
  • c) 13 and 31
  • d) 14 and 33
Q.28
The correct order of ionization energies is ... [ kerala CEE 2000]
  • a) Zn < Cd < Hg
  • b) Hg < Zn < Cd
  • c) Ar > Ne > He
  • d) Cs < Rb < Na
Q.29
Which one of the following is an incorrect statement? [ MP PMT 2001]
  • a) The ionization potential of nitrogen is greater than that of oxygen
  • b) The electron affinity of fluorine is greater than that of chlorine
  • c) The ionization potential of beryllium is greater than that of boron
  • d) The electronegativity of fluorine is greater than that of chlorine
Q.30
Consider the following statementsI. The radius of an anion is larger than that of the parent atomII. The ionization energy generally increases with increasing atomic number in period.III. The electro negativity of an element is the tendency of an isolated atom to attract an electron.Which of the above statements is/are correct? ... [ SCRA 2001]
  • a) I alone
  • b) II alone
  • c) I and II
  • d) II and III
0 h : 0 m : 1 s