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Classification of Elements and Periodicity in Properties

301 Questions Start Errorless Test
All Exams Errorless
MP PMT 1994 Q226 Errorless Extended or Long Form of Periodic Table MCQ
The $d$ -block elements consist mostly of
A.
Monovalent metals
B.
All non-metals
C.
Elements which generally form stoichiometric metal oxide
D.
Many metals with catalytic properties
MP PMT 1994 Q227 Errorless Atomic and Ionic Radii MCQ
An atom of an element has electronic configuration 2, 8, 1. Which of the following statement is correct
A.
The element's valency is 7
B.
The element exists as a diatomic molecule
C.
The element is of non-metallic nature
D.
The element forms a basic oxide
MP PET 1994 Q228 Errorless Atomic and Ionic Radii MCQ
In which of the following pairs the difference between the covalent radii of the two metals is maximum
A.
$K, Ca$
B.
Mn, Fe
C.
Co, Ni
D.
Cr, Mn
CPMT 1994 Q229 Errorless Electron Affinity MCQ
The electron affinity of
A.
Carbon is greater than oxygen
B.
Sulphur is less than oxygen
C.
Iodine is greater than bromine
D.
Bromine is less than chlorine
MP PET 1994 Q230 Errorless Electronegativity MCQ
On Pauling scale which of the following does not have electronegativity $\geq 3.0$
A.
Oxygen
B.
Nitrogen
C.
Chlorine
D.
Bromine
EAMCET 1993; MP PET 2001, 11; AIEEE 2004 Q231 Errorless Atomic and Ionic Radii MCQ
Which one of the following ions has the highest value of ionic radius
A.
$O^{2-}$
B.
$B^{3+}$
C.
$Li^{+}$
D.
$F^{-}$
MP PET 1993 Q232 Errorless Atomic and Ionic Radii MCQ
Which one of the following is the biggest ion
A.
$Al^{+3}$
B.
$Ba^{+2}$
C.
$Mg^{+2}$
D.
$Na^{+}$
MP PET 1993 Q233 Errorless Atomic and Ionic Radii MCQ
Which of the following sets of elements have the strongest tendency to form anions
A.
$N, O, F$
B.
$P, S, Cl$
C.
$As, Se, Br$
D.
$Sb, Te, I$
MP PMT 1993; MP PET 1995, 2001; CBSE PMT 2009 Q234 Errorless Valency and Oxidation State MCQ
Which one of the elements with the following outer orbital configurations may exhibit the largest number of oxidation states
A.
$3d^{3}4s^{2}$
B.
$3d^{5}4s^{1}$
C.
$3d^{5}4s^{2}$
D.
$3d^{2}4s^{2}$
MP PET 1993 Q235 Errorless Valency and Oxidation State MCQ
In the periodic table, the metallic character of elements
A.
Decreases from left to right across a period and on descending a group
B.
Decreases from left to right across a period and increases on descending a group
C.
Increases from left to right across a period and on descending a group
D.
Increases from left to right across a period and decreases on descending a group
KCET 1993 Q236 Errorless Valency and Oxidation State MCQ
Which is the weakest base
A.
NaOH
B.
KOH
C.
$\mathrm{Ca(OH)_2}$
D.
$\mathrm{Zn(OH)_2}$
AIIMS 1992; UPSEAT 2001 Q237 Errorless Extended or Long Form of Periodic Table MCQ
Chloride of an element A gives neutral solution in water. In the periodic table, the element A belongs to
A.
First group
B.
Third group
C.
Fifth group
D.
First transition series
AFMC 1992; Manipal MEE 1995 Q238 Errorless Extended or Long Form of Periodic Table MCQ
Which of the following elements is a lanthanide (Rare-earth element)
A.
Cadmium
B.
Californium
C.
Cerium
D.
Cesium
MNR 1992; UPSEAT 1999, 2000, 02 Q239 Errorless Extended or Long Form of Periodic Table MCQ
The electronic configuration of the element which is just above the element with atomic number 43 in the same periodic group is
A.
$1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{5} 4s^{2}$
B.
$1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{2} 4p^{5}$
C.
$1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{6} 4s^{1}$
D.
$1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 3d^{10} 4s^{1} 4p^{6}$
CBSE PMT 1992 Q240 Errorless Atomic and Ionic Radii MCQ
Elements of which group form anions most readily
A.
Oxygen family
B.
Nitrogen group
C.
Halogens
D.
Alkali metals
EAMCET 1992 Q241 Errorless Atomic and Ionic Radii MCQ
$Al^{3+}$ has a lower ionic radius than $Mg^{2+}$ because
A.
Mg atom has less number of neutrons than Al
B.
$Al^{3+}$ has a higher nuclear charge than $Mg^{2+}$
C.
Their electronegativities are different
D.
Al has a lower ionisation potential than Mg atom
AIIMS 1992 Q242 Errorless Ionisation Energy MCQ
Which of the following transitions involves maximum amount of energy
A.
$M^{-}(g) \rightarrow M(g)$
B.
$M(g) \rightarrow M^{+}(g)$
C.
$M^{+}(g) \rightarrow M^{2+}(g)$
D.
$M^{2+}(g) \rightarrow M^{3+}(g)$
KCET 1992 Q243 Errorless Ionisation Energy MCQ
Which of the following elements will have the lowest first ionisation energy
A.
Mg
B.
Rb
C.
Li
D.
Ca
Bihar CEE 1992 Q244 Errorless Valency and Oxidation State MCQ
Which of the following electronic configurations in the outermost shell is characteristic of alkali metals
A.
$(n - 1)s^{2}p^{6},ns^{2}p^{1}$
B.
$(n - 1)s^{2}p^{6}d^{10},ns^{1}$
C.
$(n - 1)s^{2}p^{6},ns^{1}$
D.
$ns^2 p^6 d^1$
CBSE PMT 1992; AFMC 1998; CPMT 1999; DCE 2006 Q245 Errorless Critical Thinking MCQ
A sudden large jump between the values of second and third ionisation energies of an element would be associated with the electronic configuration
A.
$1s^{2}, 2s^{2}2p^{6}, 3s^{1}$
B.
$1s^{2}, 2s^{2}2p^{6}, 3s^{2}3p^{1}$
C.
$$<br /> 1 s ^ {2}, 2 s ^ {2} 2 p ^ {6}, 3 s ^ {2} 3 p ^ {2}<br /> $$
D.
$$<br /> 1 s ^ {2}, 2 s ^ {2} 2 p ^ {6}, 3 s ^ {2}<br /> $$
IIT 1992 Q246 Errorless Critical Thinking MCQ
The statement that is not correct for the periodic classification of element is
A.
The properties of elements are the periodic functions of their atomic numbers
B.
Non-metallic elements are lesser in number than metallic elements
C.
The first ionization energies of elements along a period do not vary in a regular manner with increase in atomic number
D.
For transition elements the d-subshell are filled with electrons monotonically with increase in atomic number
CPMT 1991; Kurukshetra CEE 1991; MP PET 2001 Q247 Errorless Extended or Long Form of Periodic Table MCQ
An element of atomic number 29 belongs to
A.
s-block
B.
p-block
C.
d-block
D.
f-block
Kurukshetra CEE 1991 Q248 Errorless Extended or Long Form of Periodic Table MCQ
Which one of the following belongs to representative group of elements in the periodic table
A.
Lanthanum
B.
Argon
C.
Chromium
D.
Aluminium
Kurukshetra CEE 1991; KCET 2008 Q249 Errorless Extended or Long Form of Periodic Table MCQ
An element with atomic number 21 is a
A.
Transition element
B.
Alkali metal
C.
Halogen
D.
Representative element
AIIMS 1991 Q250 Errorless Ionisation Energy MCQ
Which has the highest second ionisation potential
A.
Nitrogen
B.
Carbon
C.
Oxygen
D.
Fluorine