JEE Main & Advanced Chemistry Classification of Elements and Periodicity in Properties / तत्त्वों का वर्गीकरण एवं गुणों में आवर्ति Question Bank

done Topic Test - Chemical Periodicity (5-5-21) Total Questions - 40

• question_answer1)
  Which of these dose not reflect the periodicity of the elements          
  A)
  Bonding behaviour done clear
  B)
  Electronegativity done clear
  C)
  Ionization energy done clear
  D)
  Neutron/proton ratio done clear
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• question_answer2)
  Elements of atomic number 6 is placed in
  A)
  IV group done clear
  B)
  IV period done clear
  C)
  VI group done clear
  D)
  III group done clear
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• question_answer3)
  An element has electronic configuration \[1{{s}^{2}}2{{s}^{2}}2{{p}^{6}}3{{s}^{2}}3{{p}^{4}}\]. Predict their period, group and block
  A)
  Period = 3rd, block = p, group = 16 done clear
  B)
  Period = 5th, block = s, group = 1 done clear
  C)
  Period = 3rd, block = p, group = 10 done clear
  D)
  Period = 4th, block = d, group = 12 done clear
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• question_answer4)
  The element having the electronic configuration \[1{{s}^{2}},\] \[2{{s}^{2}}\,2{{p}^{6}},\,3{{s}^{2}}\,3{{p}^{1}}\] is
  A)
  A transition element done clear
  B)
  A representative element done clear
  C)
  An inert gas done clear
  D)
  An inner–transition element done clear
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• question_answer5)
  The element with atomic number 55 belongs to
  A)
  s-block done clear
  B)
  p-block done clear
  C)
  d-block done clear
  D)
  f-block done clear
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• question_answer6)
  In which of the following groups all the three members are of the alkaline earth metals family
  A)
  \[Al,\,Sr,\,Ti\] done clear
  B)
  \[Li,\,Na,\,K\] done clear
  C)
  \[Mg,\,Ba,\,Ca\] done clear
  D)
  \[Rb,\,Cs,\,Fr\] done clear
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• question_answer7)
  Which of the properties remains unchanged on descending a group in the periodic table
  A)
  Atomic size done clear
  B)
  Density done clear
  C)
  Valence electrons done clear
  D)
  Metallic character done clear
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• question_answer8)
  Which of the following has the smallest size
  A)
  \[N{{a}^{+}}\]            done clear
  B)
  \[M{{g}^{+2}}\] done clear
  C)
  \[C{{l}^{-}}\]  done clear
  D)
  \[{{F}^{-}}\] done clear
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• question_answer9)
  The lanthanide contraction is responsible for the fact that
  A)
  Zr and Y have about the same radius done clear
  B)
  Zr and Nb have similar oxidation state done clear
  C)
  Zr and Hf have about the same radius done clear
  D)
  Zr and Zn have the same oxidation state done clear
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• question_answer10)
  Radius of the isoelectronic species
  A)
  Increases with the increase of nuclear charge done clear
  B)
  Decreases with the increase of nuclear charge done clear
  C)
  Is the same for all done clear
  D)
  First increases and then decreases done clear
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• question_answer11)
  Increasing order of atomic radii is 
  A)
  \[M{{g}^{2+}}<N{{a}^{+}}<Ne<{{F}^{-}}<{{O}^{2-}}\] done clear
  B)
  \[N{{a}^{+}}<M{{g}^{++}}<Ne<{{F}^{-}}<{{O}^{2-}}\] done clear
  C)
  \[{{O}^{2-}}<{{F}^{-}}<Ne<N{{a}^{+}}<M{{g}^{2+}}\] done clear
  D)
  \[Ne<{{O}^{2-}}<{{F}^{-}}<N{{a}^{+}}<M{{g}^{2+}}\] done clear
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• question_answer12)
  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 done clear
  B)
  There is a decrease in the nuclear charge of the alkaline earth metals done clear
  C)
  There is no change in the nuclear charge done clear
  D)
  None of the above done clear
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• question_answer13)
  Which ionisation potential \[\left( IP \right)\] in the following equations involves the greatest amount of energy
  A)
  \[Na\to N{{a}^{+}}+{{e}^{-}}\] done clear
  B)
  \[{{K}^{+}}\to {{K}^{2+}}+{{e}^{-}}\] done clear
  C)
  \[{{C}^{2+}}\to {{C}^{3+}}+{{e}^{-}}\] done clear
  D)
  \[C{{a}^{+}}\to C{{a}^{2+}}+{{e}^{-}}\] done clear
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• question_answer14)
  The first ionisation energy of lithium will be
  A)
  Greater than \[Be\] done clear
  B)
  Less than \[Be\] done clear
  C)
  Equal to that of \[Na\] done clear
  D)
  Equal to that of \[F\] done clear
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• question_answer15)
  Which has maximum first ionization potential
  A)
  C done clear
  B)
  N done clear
  C)
  B done clear
  D)
  O done clear
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• question_answer16)
  The electron affinities of halogens are \[F=322\], \[Cl=349\], \[Br=324\], \[I=295kJ\,mo{{l}^{-1}}\]. The higher value for \[Cl\] as compared to that of \[F\] is due to
  A)
  Weaker electron-electron repulsion in \[Cl\] done clear
  B)
  Higher atomic radius of \[F\] done clear
  C)
  Smaller electronegativity of \[F\] done clear
  D)
  More vacant P - subshell in \[Cl\] done clear
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• question_answer17)
  Which of the following properties show gradual decrease with increase in atomic number across a period in the periodic table           
  A)
  Electron affinity done clear
  B)
  Ionization potential done clear
  C)
  Electronegativity done clear
  D)
  Size of atom done clear
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• question_answer18)
  Keeping in view the periodic law and the periodic table suggest which of the following elements should have the maximum electronegative character 
  A)
  P done clear
  B)
  As done clear
  C)
  Bi done clear
  D)
  Sb done clear
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• question_answer19)
  With increasing atomic number in a certain period
  A)
  The chemical reactivity decreases done clear
  B)
  The chemical reactivity increases done clear
  C)
  The electropositive character increases done clear
  D)
  The electronegative character increases done clear
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• question_answer20)
  Which of these have no unit        
  A)
  Electronegativity done clear
  B)
  Electron affinity done clear
  C)
  Ionisation energy done clear
  D)
  Excitation potential done clear
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• question_answer21)
  Acidity of pentoxides in VA group
  A)
  Decreases done clear
  B)
  Increases done clear
  C)
  Remains same done clear
  D)
  None done clear
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• question_answer22)
  Pentavalency in phosphorus is more stable when compared to that of nitrogen even through they belong to same group is due to           
  A)
  Reactivity of phosphorus done clear
  B)
  Inert nature of nitrogen done clear
  C)
  Dissimilar electronic configuration done clear
  D)
  Larger size of phosphorus atom done clear
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• question_answer23)
  Oxidising action increases in halogen in the following order
  A)
  Cl < Br < I < F done clear
  B)
  Cl < I < Br < F done clear
  C)
  I < F < Cl < Br done clear
  D)
  I < Br < Cl < F done clear
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• question_answer24)
  An element X which occurs in the first short period has an outer electronic structure \[{{s}^{2}}{{p}^{1}}\]. What are the formula and acid-base character of its oxides
  A)
  \[X{{O}_{3}},\] basic done clear
  B)
  \[{{X}_{2}}{{O}_{3}},\] basic done clear
  C)
  \[{{X}_{2}}{{O}_{3}},\] amphoteric done clear
  D)
  \[X{{O}_{2}},\] acidic done clear
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• question_answer25)
  Hydrogen by donating one electron forms \[{{H}^{+}}\]. In this property, it resembles with
  A)
  Transitional metals          done clear
  B)
  Alkaline earth metals done clear
  C)
  Alkali metals done clear
  D)
  Halogens done clear
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• question_answer26)
  “The 6 properties of the elements are periodic function of their atomic numbers.” The statement was given by
  A)
  N. Bohr done clear
  B)
  J.W. Dobereiner done clear
  C)
  D.I. Mendeleef done clear
  D)
  H.G.J. Moseley done clear
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• question_answer27)
  Chemical property of Li and Mg similar because
  A)
  These belong to same group done clear
  B)
  Both ionisation potential is same done clear
  C)
  Shows diagonal relationship done clear
  D)
  Both electron affinity is same done clear
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• question_answer28)
  Elements after atomic number 103 have been discovered till now. If an element with atomic number 106 were ever discovered which of the following electronic configuration will it possess
  A)
  \[[Rn]\,5{{f}^{14}}\,6{{d}^{4}}\,7{{s}^{2}}\]           done clear
  B)
  \[[Rn]\,5{{f}^{14}}\,6{{d}^{5}}7{{s}^{1}}\] done clear
  C)
  \[[Rn]\,5{{f}^{14}}\,6{{d}^{6}}\,7{{s}^{0}}\]           done clear
  D)
  \[[Rn]\,5{{f}^{14}}\,6{{d}^{1}}\,7{{s}^{2}}\,7{{p}^{3}}\] done clear
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• question_answer29)
  In the modern periodic table, elements are arranged in
  A)
  Increasing mass done clear
  B)
  Increasing volume done clear
  C)
  Increasing atomic number done clear
  D)
  Alphabetically done clear
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• question_answer30)
  \[Ce-58\] is a member of
  A)
  s-block elements done clear
  B)
  p-block elements done clear
  C)
  d-block elements done clear
  D)
  f-block elements done clear
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• question_answer31)
  Which of the following doesn’t decompose on heating
  A)
  \[MgC{{O}_{3}}\] done clear
  B)
  \[N{{a}_{2}}C{{O}_{3}}\] done clear
  C)
  \[L{{i}_{2}}C{{O}_{3}}\] done clear
  D)
  \[Ca\,{{(HC{{O}_{3}})}_{2}}\] done clear
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• question_answer32)
  Which one of the following ions has the highest value of ionic radius               
  A)
  \[{{O}^{2-}}\] done clear
  B)
  \[{{B}^{3+}}\] done clear
  C)
  \[L{{i}^{+}}\] done clear
  D)
  \[{{F}^{-}}\] done clear
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• question_answer33)
  The unit representing atomic radii and ionic radii is
  A)
  nm done clear
  B)
  cm done clear
  C)
  Å done clear
  D)
  m done clear
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• question_answer34)
  Arrange the following in increasing order of their atomic radius : \[Na,\,K,\,Mg,\,Rb\]   
  A)
  Mg < K < Na < Rb done clear
  B)
  Mg  < Na < K < Rb done clear
  C)
  Mg < Na < Rb < K done clear
  D)
  Na < K < Rb < Mg done clear
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• question_answer35)
  Correct energy value order is          
  A)
  \[ns\ np\ nd(n-1)f\] done clear
  B)
  \[ns\ np(n-1)d\ (n-2)f\] done clear
  C)
  \[ns\ np(n-1)d\ (n-1)f\] done clear
  D)
  \[ns(n-1)d\ n(n-1)f\] done clear
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• question_answer36)
  The ionization energy of nitrogen is more than that of oxygen because          
  A)
  Nitrogen has half filled p-orbitals done clear
  B)
  Nitrogen is left to the oxygen in the same period of the periodic table done clear
  C)
  Nitrogen contains less number of electrons done clear
  D)
  Nitrogen is less electronegative done clear
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• question_answer37)
  Which of the following elements has the lowest ionistion potential     
  A)
  N done clear
  B)
  O done clear
  C)
  F done clear
  D)
  Ne done clear
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• question_answer38)
  Ionisation energy in group I-A varies in the decreasing order as 
  A)
  \[Li>Na>K>Cs\] done clear
  B)
  \[Na>Li>K>Cs\] done clear
  C)
  \[Li>Cs>K>Na\] done clear
  D)
  \[K>Cs>Na>Li\] done clear
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• question_answer39)
  Which one of the following sets of ions represents the collection of isoelectronic species  
  A)
  \[{{K}^{+}},C{{l}^{-}},M{{g}^{2+}},S{{c}^{3+}}\] done clear
  B)
  \[N{{a}^{+}},C{{a}^{2+}},S{{c}^{3+}},{{F}^{-}}\] done clear
  C)
  \[{{K}^{+}},C{{a}^{2+}},S{{c}^{3+}},C{{l}^{-}}\] done clear
  D)
  \[N{{a}^{+}},M{{g}^{2+}},A{{l}^{3+}},Cl\] done clear
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• question_answer40)
  The electron affinity values (in \[kJ\,mo{{l}^{-1}}\]) of three halogens \[X,\,Y\] and \[Z\] are respectively  – 349, – 333 and – 325. Then \[X,\,Y\] and \[Z\] are respectively
  A)
  \[{{F}_{2}},\,C{{l}_{2}}\] and \[B{{r}_{2}}\] done clear
  B)
  \[C{{l}_{2}},\,{{F}_{2}}\] and \[B{{r}_{2}}\] done clear
  C)
  \[C{{l}_{2}},\,B{{r}_{2}}\] and \[{{F}_{2}}\] done clear
  D)
  \[B{{r}_{2}},\,C{{l}_{2}}\] and \[{{F}_{2}}\] done clear
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