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Classification of Elements and Periodicity in Properties

301 Questions Start Errorless Test
All Exams Errorless
CPMT 1997 Q201 Errorless Electron Affinity MCQ
Fluorine has low electron affinity than chlorine because of
A.
Smaller radius of fluorine, high density
B.
Smaller radius of chlorine, high density
C.
Bigger radius of fluorine, less density
D.
Smaller radius of chlorine, less density
MP PET 1997; J & K CET 2005 Q202 Errorless Electron Affinity MCQ
The correct order of electron affinity of B, C, N, O is
A.
O > C > N > B
B.
B > N > C > O
C.
O > C > B > N
D.
O > B > C > N
IIT 1997 Q203 Errorless Critical Thinking MCQ
The incorrect statement among the following is
A.
The first ionization potential of $Al$ is less than the first ionization potential of $Mg$
B.
The second ionization potential of Mg is greater than the second ionization potential of Na
C.
The first ionization potential of Na is less than the first ionization potential of Mg
D.
The third ionization of Mg is greater than third ionization of Al
IIT 1997 Q204 Errorless Critical Thinking MCQ
Which of the following compounds is expected to be coloured
A.
$Ag_{2}SO_{4}$
B.
$CuF_{2}$
C.
$MgF_{2}$
D.
$CuCl$
BHU 1996; AMU 2000 Q205 Errorless Extended or Long Form of Periodic Table MCQ
Which of the following is metalloid
A.
Pb
B.
Zn
C.
As
D.
None of these
DPMT 1996 Q206 Errorless Extended or Long Form of Periodic Table MCQ
Last element of group-IV is found to be
A.
Strong metallic
B.
Weak metallic
C.
Strong non-metallic
D.
Weak non-metallic
MP PET 1996; MP PMT 1996 Q207 Errorless Extended or Long Form of Periodic Table MCQ
All the elements in a group in the periodic table have the same
A.
Atomic number
B.
Electronic configuration
C.
Atomic weight
D.
Number of electrons in the outermost shell or number of electrons for bonding
MP PET 1996 Q208 Errorless Extended or Long Form of Periodic Table MCQ
Elements in which 4f orbitals are progressively filled are called as
A.
Transition elements
B.
Lanthanides
C.
Actinides
D.
Inert gases
MP PET 1996 Q209 Errorless Atomic and Ionic Radii MCQ
Of the following the ion with the smallest ionic radius is
A.
$K^{+}$
B.
$Ca^{2+}$
C.
$Ti^{3+}$
D.
$Ti^{4+}$
CPMT 1996; DCE 2001 Q210 Errorless Ionisation Energy MCQ
The ionisation potential of hydrogen from ground state to the first excited state is
A.
-13.6 eV
B.
13.6 eV
C.
-3.4 eV
D.
3.4 eV
MP PET 1996; UPSEAT 2001 Q211 Errorless Ionisation Energy MCQ
The first ionisation energies of alkaline earth metals are higher than those of the alkali metals. This is because
A.
There is increase in the nuclear charge of the alkaline earth metals
B.
There is a decrease in the nuclear charge of the alkaline earth metals
C.
There is no change in the nuclear charge
D.
None of the above
KCET 1996 Q212 Errorless Ionisation Energy MCQ
Which of the following species has lowest ionisation potential
A.
$O$
B.
$O_{2}$
C.
$O_{2}^{+}$
D.
$O_{2}^{-}$
BHU 1996 Q213 Errorless Electron Affinity MCQ
The amount of energy which is released due to addition of extra electron to the outermost orbit of gaseous atom is called
A.
Electron capacity
B.
Electron affinity
C.
Ionisation potential
D.
Electronegativity
IIT 1996 Q214 Errorless Critical Thinking MCQ
Which of the following has the maximum number of unpaired electrons
A.
$Mg^{2+}$
B.
$Ti^{3+}$
C.
$V^{3+}$
D.
$Fe^{2+}$
IIT JEE 1996 Q215 Errorless Critical Thinking MCQ
Which one of the following oxides is neutral
A.
CO
B.
$SnO_2$
C.
ZnO
D.
$SiO_2$
AFMC 1995 Q216 Errorless Extended or Long Form of Periodic Table MCQ
The most common lanthanide is
A.
Lanthanum
B.
Cerium
C.
Samarium
D.
Plutonium
MP PMT 1995 Q217 Errorless Extended or Long Form of Periodic Table MCQ
The element with atomic number 55 belongs to
A.
s-block
B.
p-block
C.
d-block
D.
f-block
AFMC 1995, 97; CPMT 1999 Q218 Errorless Atomic and Ionic Radii MCQ
Arrange the following in increasing order of their atomic radius: Na, K, Mg, Rb
A.
Mg < K < Na < Rb
B.
Mg < Na < K < Rb
C.
Mg < Na < Rb < K
D.
Na < K < Rb < Mg
MP PMT 1995, 2003; JIPMER (Med.) 2002 Q219 Errorless Atomic and Ionic Radii MCQ
Which of the following has largest size
A.
Al
B.
$Al^{+}$
C.
$Al^{+2}$
D.
$Al^{+3}$
MP PET 1995 Q220 Errorless Atomic and Ionic Radii MCQ
The atomic radii in periodic table among elements from right to left
A.
Decreases
B.
Increases
C.
Remain constant
D.
First decreases and then increases
Roorkee (IIT) 1995 Q221 Errorless Critical Thinking MCQ
If first orbit energy of $He^{+}$ is -54.4 eV, then the second orbit energy will be
A.
-54.4 eV
B.
-13.6 eV
C.
-27.2 eV
D.
+27.2 eV
IIT 1995 Q222 Errorless Critical Thinking MCQ
Which has most stable +2 oxidation state
A.
Sn
B.
Pb
C.
Fe
D.
Ag
Roorkee (IIT) 1995 Q223 Errorless Critical Thinking MCQ
The decreasing order of size of isoelectronic series $K^{+}, Ca^{2+}, Cl^{-}$ and $S^{2-}$ is
A.
$K^{+} > Ca^{2+} > S^{2-} > Cl^{-}$
B.
$K^{+} > Ca^{2+} > Cl^{-} > S^{2-}$
C.
$Ca^{2+} > K^{+} > Cl^{-} > S^{2-}$
D.
$S^{2-} > Cl^{-} > K^{+} > Ca^{2+}$
Roorkee (IIT) 1995 Q224 Errorless Critical Thinking MCQ
Which one of the elements has the maximum electron affinity
A.
$F$
B.
$Cl$
C.
$Br$
D.
$I$
Roorkee (IIT) 1995 Q225 Errorless Critical Thinking MCQ
Which element has the highest electronegativity
A.
$F$
B.
He
C.
$Ne$
D.
$Na$