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Classification of Elements and Periodicity in Properties

571 Questions Start Errorless Test
All Exams Errorless Allen
DPMT 1996 Q276 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 PMT 1996 Q277 Errorless Extended or long form of periodic table MCQ
Element of atomic number 23 is placed in the periodic table in
A.
s-block
B.
p-block
C.
d-block
D.
f-block
MP PET 1996; MP PMT 1996 Q278 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 Q279 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
Bihar MEE 1996 Q280 Errorless Extended or long form of periodic table MCQ
Coloured salts are formed by
A.
Alkali metals
B.
Lanthanides
C.
Actinides
D.
Transition metals
E.
None of these
CBSE PMT 1996 Q281 Errorless Atomic and Ionic radii MCQ
Which of the following is largest
A.
$Cl^{-}$
B.
$S^{2-}$
C.
$Na^{+}$
D.
$F^{-}$
CBSE PMT 1996; MP PMT 2013 Q282 Errorless Atomic and Ionic radii MCQ
Which of the following has the smallest size
A.
$Na^{+}$
B.
$Mg^{+2}$
C.
$Cl^{-}$
D.
$F^{-}$
MP PMT 1996 Q283 Errorless Atomic and Ionic radii MCQ
The order of magnitude of ionic radii of ions $Na^{+}, Mg^{2+}, Al^{3+}$ and $Si^{4+}$ is
A.
$Na^{+} < Mg^{2+} < Al^{3+} < Si^{4+}$
B.
$Mg^{2+} > Na^{+} > Al^{3+} > Si^{4+}$
C.
$Al^{3+} > Na^{+} > Si^{4+} > Mg^{2+}$
D.
$Na^{+} > Mg^{2+} > Al^{3+} > Si^{4+}$
MP PET 1996 Q284 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 Q285 Errorless Ionisation Energy MCQ
The ionisation potential of hydrogen from ground state to the first excited state is
A.
$-13.6\mathrm{eV}$
B.
$13.6\mathrm{eV}$
C.
$-3.4\mathrm{eV}$
D.
$3.4\mathrm{eV}$
MP PET 1996; UPSEAT 2001 Q286 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 Q287 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 Q288 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 Q289 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 Q290 Errorless Critical Thinking MCQ
Which one of the following oxides is neutral
A.
CO
B.
$\mathsf{SnO}_2$
C.
ZnO
D.
$\mathsf{SiO}_2$
CBSE PMT 1995 Q291 Errorless Extended or long form of periodic table MCQ
The electronic configuration of an element is $1s^{2}, 2s^{2} 2p^{6}, 3s^{2} 3p^{3}$ . What is the atomic number of the element which is just below the above element in the periodic table
A.
33
B.
34
C.
31
D.
49
AFMC 1995 Q292 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 Q293 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
MP PMT 1995 Q294 Errorless Extended or long form of periodic table MCQ
The electronic configuration of an atom A is $1s^{2}$ , $2s^{2}2p^{6}$ , $3s^{2}3p^{6}3d^{10}$ , $4s^{2}4p^{3}$ . The chemistry of A is therefore likely to be similar to that of
A.
Chlorine
B.
Nitrogen
C.
Oxygen
D.
Boron
MP PMT 1995 Q295 Errorless Extended or long form of periodic table MCQ
Alkali metals in each period have
A.
Smallest size
B.
Lowest ionisation potential
C.
Highest ionisation potential
D.
Highest electronegativity
AIIMS 1995 Q296 Errorless Extended or long form of periodic table MCQ
Assertion : Noble gases have maximum electron affinity. Reason : High electron affinity shows that the electron is loosely bonded to the atom. (a) If both assertion and reason are true and the reason is the correct explanation of the assertion. (b) If both assertion and reason are true but reason is not the correct explanation of the assertion. (d) If the assertion and reason both are false. (e) If assertion is false but reason is true.
A.
If both assertion and reason are true and the reason is the correct explanation of the assertion.
B.
If both assertion and reason are true but reason is not the correct explanation of the assertion.
C.
If assertion is true but reason is false.
D.
If the assertion and reason both are false.
E.
If assertion is false but reason is true.
AFMC 1995, 97; CPMT 1999 Q297 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 Q298 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 Q299 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 Q300 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