10th Class Science Periodic Classification of Elements Question Bank

done Classification of Elements Total Questions - 89

• question_answer1)
  In modern periodic table, elements are arranged in
  A)
   increasing order of atomic mass done clear
  B)
   increasing order of atomic volumes done clear
  C)
   increasing order of atomic number   done clear
  D)
   increasing order of electron affinity done clear
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• question_answer2)
  Tenth element in periodic table resembles with the
  A)
   first                       done clear
  B)
          second   done clear
  C)
   fourth              done clear
  D)
          ninth done clear
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• question_answer3)
  In the long term of periodic table, all the non- metals are placed in
  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_answer4)
  The cause of periodicity of properties is
  A)
   Increasing atomic radius done clear
  B)
   Increasing atomic weight done clear
  C)
   Number of electrons in the valency orbit done clear
  D)
   The recurrence of similar outer electronic configuration   done clear
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• question_answer5)
  Highest ionization potential in a period is shown by
  A)
   alkali metals       done clear
  B)
   transition elements done clear
  C)
   halogens               done clear
  D)
   noble gases   done clear
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• question_answer6)
  The properties of the elements, as well as the formulae and properties of their compounds depend in a periodic manner on the atomic weights of the elements. This periodic law was given by
  A)
   J. L. Meyer       done clear
  B)
   John A.R. Newlands done clear
  C)
   Dernier        done clear
  D)
   D.I. Mendeleev   done clear
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• question_answer7)
  Elements belonging to the same group have similar properties because
  A)
   they have similar electronic configuration of the outermost shell   done clear
  B)
   their atomic numbers go on increasing as we move down the group done clear
  C)
   all of them are metallic elements done clear
  D)
   none of the above done clear
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• question_answer8)
  With the increase in atomic number in period
  A)
   metallic character decreases   done clear
  B)
   metallic character increases done clear
  C)
   chemical reactivity decreases done clear
  D)
   chemical reactivity increases done clear
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• question_answer9)
  On descending a group, electropositive character of elements
  A)
   increases              done clear
  B)
   decreases done clear
  C)
   remain same                     done clear
  D)
   None of these done clear
  View Solution play_arrow

• question_answer10)
  Which of the following elements has highest first ionization potential?
  A)
   C                                            done clear
  B)
   N   done clear
  C)
   B                            done clear
  D)
          O done clear
  View Solution play_arrow

• question_answer11)
  Ionization potential in a period is lowest for
  A)
   halogens done clear
  B)
   inert gases done clear
  C)
   alkali metals   done clear
  D)
   alkaline earth elements done clear
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• question_answer12)
  The law of triads is applicable to
  A)
   \[C,N,O\]           done clear
  B)
  \[Na,K,Rb\] done clear
  C)
   \[Cl,Br,I\]             done clear
  D)
          None of these done clear
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• question_answer13)
  The atoms of elements belonging to the same group of periodic table have the same number of
  A)
   protons done clear
  B)
   electrons done clear
  C)
   neutrons done clear
  D)
   electrons in the outermost Shell   done clear
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• question_answer14)
  Order of relative size amongst the .following is
  A)
   \[Li<Na<K\]                       done clear
  B)
   \[C>Si<Al\] done clear
  C)
  \[Mg>Al<Na\]                     done clear
  D)
   \[F>Cl<Br\] done clear
  View Solution play_arrow

• question_answer15)
  The correct order of relative sizes is
  A)
   \[{{I}^{-}}>{{I}^{+}}<I\]                 done clear
  B)
          \[{{I}^{-}}>I<{{I}^{+}}\]   done clear
  C)
   \[I>{{I}^{+}}<{{I}^{-}}\]          done clear
  D)
          \[{{I}^{+}}>{{I}^{-}}<I\] done clear
  View Solution play_arrow

• question_answer16)
  Elements of IA group give colour in Bunsen burner flame, because of
  A)
   low ionization potential   done clear
  B)
   low melting point done clear
  C)
   softness done clear
  D)
   all of these done clear
  View Solution play_arrow

• question_answer17)
  In the periodic table, the element with atomic number 6 will be in
  A)
   second period                    done clear
  B)
   third period done clear
  C)
   fourth period     done clear
  D)
          fifth period done clear
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• question_answer18)
  In the periodic  table, with the increase in atomic number the metallic character of an element
  A)
   decreases in a period and increases in a group   done clear
  B)
   increases in a period and decreases in a group done clear
  C)
   increases both in period and group done clear
  D)
   decreases both in period and group done clear
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• question_answer19)
  Which one of the following has the smallest size?
  A)
   \[Al\]                    done clear
  B)
          \[A{{l}^{+}}\] done clear
  C)
   \[A{{l}^{+2}}\]                  done clear
  D)
          \[A{{l}^{+3}}\]   done clear
  View Solution play_arrow

• question_answer20)
  On moving horizontally across a period, the number of electrons in the outermost shell increases from ...... to ......
  A)
   2, 8        done clear
  B)
                          2,18 done clear
  C)
   1, 8                    done clear
  D)
          1,18 done clear
  View Solution play_arrow

• question_answer21)
  Elements of same group in the periodic table are characterised by the same
  A)
   ionization potential done clear
  B)
   electronegativity done clear
  C)
   electron affinity done clear
  D)
   number of valency electrons   done clear
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• question_answer22)
  In the modern periodic table, VI period contains
  A)
   32 elements         done clear
  B)
          8 elements done clear
  C)
   18 elements       done clear
  D)
          36 elements done clear
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• question_answer23)
  Which of the following pairs has both elements from the same group?
  A)
   \[Mg,Ra\]                             done clear
  B)
   \[Mn,Cl\] done clear
  C)
  \[Mg,Cu\]           done clear
  D)
          \[Mg,Cl\] done clear
  View Solution play_arrow

• question_answer24)
  Most of the known elements are
  A)
   non-metals                        done clear
  B)
   metals   done clear
  C)
   transition elements       done clear
  D)
   metalloids done clear
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• question_answer25)
  Pair having elements from same period is
  A)
   Na, Ca            done clear
  B)
          Na, Cl   done clear
  C)
   Ca, Cl                    done clear
  D)
          Cl, Br done clear
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• question_answer26)
  The element with the largest size in the second period is
  A)
   lithium              done clear
  B)
          fluorine done clear
  C)
   sodium            done clear
  D)
          oxygen done clear
  View Solution play_arrow

• question_answer27)
  The element with the smallest size in the group 13 is
  A)
   beryllium          done clear
  B)
          carbon done clear
  C)
   aluminium         done clear
  D)
          boron   done clear
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• question_answer28)
  Which of the following is not a noble gas?
  A)
   Helium           done clear
  B)
          Xenon done clear
  C)
   Radium             done clear
  D)
          Radon done clear
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• question_answer29)
  The property generally decrease along a period is
  A)
   Ionization energy            done clear
  B)
   Eleptroa, affinity done clear
  C)
   Metallic character             done clear
  D)
   Valency done clear
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• question_answer30)
  Which of the following sets of elements has strongest tendency to form anions?
  A)
  \[\text{As},\text{ Se},\text{ Br}\]               done clear
  B)
   \[P,S,Cl\] done clear
  C)
   \[N,O,F\]             done clear
  D)
          \[Sb,Te,I\] done clear
  View Solution play_arrow

• question_answer31)
  Element having almost zero electronegativity is
  A)
   \[F\]                     done clear
  B)
          O done clear
  C)
   N                            done clear
  D)
          \[Xe\]   done clear
  View Solution play_arrow

• question_answer32)
  Pair of elements having same number of valency electrons is
  A)
   N, 0                                       done clear
  B)
   Na, Ca done clear
  C)
   As, Bi                      done clear
  D)
          Pb, Sb done clear
  View Solution play_arrow

• question_answer33)
  Maximum work in periodic table related with atomic number was done by
  A)
   Mendeleev        done clear
  B)
          Aston done clear
  C)
   Mosley             done clear
  D)
          Newland done clear
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• question_answer34)
  The element with highest electron affinity in the periodic table is
  A)
   iodine                  done clear
  B)
   chlorine   done clear
  C)
   fluorine           done clear
  D)
          oxygen done clear
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• question_answer35)
  Which of the following hydroxides is most basic?
  A)
   \[Be{{(OH)}_{2}}\]          done clear
  B)
          \[Ba{{(OH)}_{2}}\]   done clear
  C)
   \[Ca{{(OH)}_{2}}\]          done clear
  D)
          \[Mg{{(OH)}_{2}}\] done clear
  View Solution play_arrow

• question_answer36)
  The element with atomic number 9 resembles with the element having atomic number
  A)
   8                             done clear
  B)
          17   done clear
  C)
   36                          done clear
  D)
          27 done clear
  View Solution play_arrow

• question_answer37)
  The element with smallest size in the 4th period is
  A)
   chlorine          done clear
  B)
          iodine done clear
  C)
   fluorine          done clear
  D)
          bromine   done clear
  View Solution play_arrow

• question_answer38)
  Whose name is associated with the development of periodic table?
  A)
   Newlands         done clear
  B)
          Mendeleev   done clear
  C)
   Dalton                  done clear
  D)
          Doberiener done clear
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• question_answer39)
  Which of the following configurations represent the metallic element?
  A)
   2, 8, 8               done clear
  B)
          2, 8, 7 done clear
  C)
   2, 8, 2                 done clear
  D)
          2, 8, 4 done clear
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• question_answer40)
  The element with configuration \[\text{1}{{\text{s}}^{\text{2}}},\text{ 2}{{\text{s}}^{\text{2}}},\text{ 2}{{\text{p}}^{\text{6}}},\text{ 3}{{\text{s}}^{\text{2}}}\] would be
  A)
   a metal              done clear
  B)
          a non-metal done clear
  C)
   a inert gas        done clear
  D)
          a metalloid done clear
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• question_answer41)
  A neutral atom will have lowest ionization potential when its electronic configuration is
  A)
  \[\text{1}{{\text{s}}^{\text{1}}}\]                            done clear
  B)
          \[\text{1}{{\text{s}}^{\text{2}}},\text{ 2}{{\text{s}}^{\text{2}}},\text{ 2}{{\text{p}}^{\text{6}}}\] done clear
  C)
  \[\text{1}{{\text{s}}^{\text{2}}},\text{ 2}{{\text{s}}^{\text{2}}},\text{ 2}{{\text{p}}^{\text{2}}}\]         done clear
  D)
         \[\text{1}{{\text{s}}^{\text{2}}},\text{ 2}{{\text{s}}^{\text{2}}},\text{ 2}{{\text{p}}^{\text{6}}},\text{ 3}{{\text{s}}^{\text{2}}},\text{ 3}{{\text{p}}^{\text{6}}}\] done clear
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• question_answer42)
  The elements of the group 16 are also called
  A)
   halogens             done clear
  B)
   noble gases done clear
  C)
   chalcogens           done clear
  D)
   alkaline earth metals done clear
  View Solution play_arrow

• question_answer43)
  Most metallic element in the fifth period is
  A)
   silver                                    done clear
  B)
   rubidium   done clear
  C)
   gold                      done clear
  D)
          rhodium done clear
  View Solution play_arrow

• question_answer44)
  Two elements that have similar properties because they have the same number of valence electrons are
  A)
   \[C\,\,and\,\,Cl\]            done clear
  B)
          \[Ca\,\,and\,\,Ga\] done clear
  C)
   \[Si\,\,and\,S\]          done clear
  D)
          \[S\,\,and\,O\]   done clear
  View Solution play_arrow

• question_answer45)
  In the periodic table from left to right in a period the atomic volume
  A)
   decreases done clear
  B)
   increases done clear
  C)
   remains same done clear
  D)
   first decreases then increases   done clear
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• question_answer46)
  Which of the following elements has highest atomic radius?
  A)
  \[Mg\]                    done clear
  B)
          \[Si\] done clear
  C)
   \[Al\]                    done clear
  D)
          \[P\] done clear
  View Solution play_arrow

• question_answer47)
  Which has greatest radius of the following?
  A)
  \[{{\text{H}}^{-}}\]                                          done clear
  B)
   \[{{F}^{-}}\] done clear
  C)
   \[I\]                      done clear
  D)
          \[{{I}^{-}}\]   done clear
  View Solution play_arrow

• question_answer48)
  Which one of the following is smallest in size?
  A)
  \[{{N}^{-3}}\]                     done clear
  B)
          \[{{O}^{-2}}\] done clear
  C)
   \[{{F}^{-}}\]                       done clear
  D)
          \[N{{a}^{+}}\]   done clear
  View Solution play_arrow

• question_answer49)
  The elements with atomic numbers 2, 10,18,36 54 and 86 are all
  A)
   light metals       done clear
  B)
          halogens done clear
  C)
   rare earths        done clear
  D)
          noble gases   done clear
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• question_answer50)
  Which of the following remains unchanged on descending a group in the periodic table?
  A)
   Valence electrons             done clear
  B)
   Atomic size done clear
  C)
   Density           done clear
  D)
          Metallic character done clear
  View Solution play_arrow

• question_answer51)
  Which of the following has zero electron affinity?
  A)
   Radon                    done clear
  B)
   Nitrogen done clear
  C)
   Oxygen           done clear
  D)
          Radium done clear
  View Solution play_arrow

• question_answer52)
  Beryllium resembles much with
  A)
   \[Zn\]                   done clear
  B)
          \[Li\] done clear
  C)
  \[Al\]                       done clear
  D)
          \[Ra\] done clear
  View Solution play_arrow

• question_answer53)
  Element having greatest tendency to lose electrons is
  A)
   \[S\]                     done clear
  B)
          \[P\] done clear
  C)
  \[Be\]                   done clear
  D)
          \[Fe\]   done clear
  View Solution play_arrow

• question_answer54)
  Which of the following elements has highest electro negativity?
  A)
   \[Al\]                    done clear
  B)
          \[S\]   done clear
  C)
   \[Si\]                    done clear
  D)
          \[P\] done clear
  View Solution play_arrow

• question_answer55)
  Which has least ionization potential?
  A)
   \[Li\]                     done clear
  B)
          \[Cs\]   done clear
  C)
   \[I\]                      done clear
  D)
          \[Cl\] done clear
  View Solution play_arrow

• question_answer56)
  Increasing order of electro negativity of following elements is
  A)
  \[\text{C }<\text{ N }<\text{ Si }<\text{ P}\] done clear
  B)
        \[\text{N }<\text{ Si }<\text{ C }<\text{ P}\] done clear
  C)
       \[\text{Si }<\text{ P }<\text{ C }<\text{ N}\]   done clear
  D)
           \[\text{P }<\text{ Si }<\text{ N }<\text{ C}\]   done clear
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• question_answer57)
      The amount of energy released on the addition of an electron in outermost shell of an atom 1s called
  A)
   ionization energy            done clear
  B)
   hydration energy done clear
  C)
   electron affinity    done clear
  D)
         electron negativity done clear
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• question_answer58)
  The halogen (Group 17 elements)
  A)
   have an electron configuration of a noble gas less seven electrons done clear
  B)
   are highly electro positive done clear
  C)
   show variable oxidation state of \[-1,+1,+3,+5\]and +7 in their various compounds   done clear
  D)
   forms a volatile, covalent hydrides HX in which the halogen (X) shows an oxidation  state of +1                              done clear
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• question_answer59)
  Electron affinity depend on
  A)
   Atomic size done clear
  B)
   Nuclear charge done clear
  C)
   Atomic number done clear
  D)
   Both atomic size and nuclear charge.   done clear
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• question_answer60)
  Which of the following has highest electron, affinity?
  A)
   0                             done clear
  B)
          S   done clear
  C)
   Be                   done clear
  D)
          B done clear
  View Solution play_arrow

• question_answer61)
  The number of elements present in fifth period is
  A)
   18                     done clear
  B)
          32 done clear
  C)
   8                             done clear
  D)
          24 done clear
  View Solution play_arrow

• question_answer62)
  Electronic configuration \[\text{1}{{\text{s}}^{\text{2}}}\text{ 2}{{\text{p}}^{\text{2}}}\text{ 2p}{{\text{x}}^{\text{1}}}\text{ 2p}{{\text{y}}^{\text{1}}}\text{ 2p}{{\text{z}}^{\text{1}}}\] corresponds to
  A)
   N                                              done clear
  B)
   Cr done clear
  C)
   0                                             done clear
  D)
   F done clear
  View Solution play_arrow

• question_answer63)
  Largest in size out of \[N{{a}^{+}}\], \[{{O}^{2-}}\] and \[{{F}^{-}}\] is
  A)
   \[N{{a}^{+}}\]                   done clear
  B)
          \[{{O}^{2-}}\]   done clear
  C)
   \[{{F}^{-}}\]                       done clear
  D)
          All are equal done clear
  View Solution play_arrow

• question_answer64)
  The long form of periodic table is based on
  A)
   Shape of the atom done clear
  B)
   Mass of the atom done clear
  C)
   Atomic number of the atom   done clear
  D)
   Electro negativity done clear
  View Solution play_arrow

• question_answer65)
  Gradual addition of electronic shell in the noble gases causes a decrease in their
  A)
   Ionization energy              done clear
  B)
   Atomic radius done clear
  C)
   Boiling point      done clear
  D)
          Density done clear
  View Solution play_arrow

• question_answer66)
  Which of the following ion is not isoelectronic With \[{{O}^{-2}}\] ?
  A)
   \[{{N}^{-3}}\]                                    done clear
  B)
   \[\text{N}{{\text{a}}^{+}}\] done clear
  C)
   \[{{F}^{-}}\]                       done clear
  D)
   \[T{{i}^{+3}}\]   done clear
  View Solution play_arrow

• question_answer67)
  A representative element that is metal is
  A)
  \[Zn\]                                    done clear
  B)
   \[Sr\]   done clear
  C)
   \[Fe\]                   done clear
  D)
          \[Cu\] done clear
  View Solution play_arrow

• question_answer68)
  Which of the following does not exhibit the periodicity in properties of the elements?
  A)
   Ionization energy            done clear
  B)
   N/P ratio   done clear
  C)
   Electro negativity            done clear
  D)
   Atomic radius done clear
  View Solution play_arrow

• question_answer69)
  Heaviest atom among the following is
  A)
   uranium            done clear
  B)
          lead done clear
  C)
   mercury          done clear
  D)
          radium done clear
  View Solution play_arrow

• question_answer70)
  Variable valency in general is shown by
  A)
   gaseous elements          done clear
  B)
   non-metals done clear
  C)
   s-block elements done clear
  D)
          d-block elements   done clear
  View Solution play_arrow

• question_answer71)
  Which of the following shows highest magnetic moment?
  A)
   \[C{{O}^{+3}}\]              done clear
  B)
          \[C{{r}^{+3}}\] done clear
  C)
   \[F{{e}^{+3}}\]                   done clear
  D)
          \[N{{i}^{+2}}\] done clear
  View Solution play_arrow

• question_answer72)
  The correct order for decreasing atomic radius of the five atoms \[H,Br,I,He\,and\,S\] is
  A)
   \[I>Br>S>He\,>H\]   done clear
  B)
   \[I>S>Br>H\,>He\] done clear
  C)
   \[I>S>Br>He\,>H\] done clear
  D)
   \[Br>I>S>He\,>H\] done clear
  View Solution play_arrow

• question_answer73)
  Size of the species\[Cl,C{{l}^{-}}and\,C{{l}^{+}}\]decreases as
  A)
   \[Cl>C{{l}^{+}}>C{{l}^{-}}\]   done clear
  B)
          \[C{{l}^{+}}>C{{l}^{-}}>Cl\] done clear
  C)
   \[C{{l}^{-}}>C{{l}^{+}}>Cl\]   done clear
  D)
          \[C{{l}^{-}}>Cl>C{{l}^{+}}\]   done clear
  View Solution play_arrow

• question_answer74)
  Which of the following has the largest size?
  A)
  \[R{{b}^{+}}\]                      done clear
  B)
   \[M{{g}^{+2}}\] done clear
  C)
   \[L{{i}^{+}}\]                     done clear
  D)
          \[B{{a}^{+2}}\] done clear
  View Solution play_arrow

• question_answer75)
  Which of the following has the smallest size?
  A)
   \[{{I}^{-}}\]                        done clear
  B)
          \[{{S}^{-2}}\] done clear
  C)
   \[{{O}^{-2}}\]                  done clear
  D)
          \[C{{l}^{-}}\] done clear
  View Solution play_arrow

• question_answer76)
  The alkali metal which acts as a nutrient for plants is
  A)
   \[Na\]                  done clear
  B)
          \[K\]   done clear
  C)
   \[Li\]                     done clear
  D)
          \[Rb\] done clear
  View Solution play_arrow

• question_answer77)
  Cat ion having maximum number of unpaired electrons is
  A)
   \[M{{n}^{+2}}\]                 done clear
  B)
          \[F{{e}^{+2}}\] done clear
  C)
   \[C{{O}^{+2}}\]               done clear
  D)
          \[N{{i}^{+2}}\] done clear
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• question_answer78)
  When first ionization energy is plotted against the atomic number, then peaks in curve are occupied by
  A)
   halogens             done clear
  B)
   rare gases   done clear
  C)
   alkali metals      done clear
  D)
          transition elements done clear
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• question_answer79)
  The elements of group 1 are called alkali metals because
  A)
   The metals are corroded by alkali done clear
  B)
   Their oxides are alkaline   done clear
  C)
   Their hydrides are strongly alkaline done clear
  D)
   None of these done clear
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• question_answer80)
  Increasing order of ionization energy is
  A)
  \[\text{Be }<\text{ B }<\text{ C }<\text{ N}\] done clear
  B)
         \[~\text{N }<\text{ C }<\text{ Be }<\text{ B}\] done clear
  C)
  \[\text{B }<\text{ Be }<\text{ C }<\text{ N}\]    done clear
  D)
  \[\text{C }<\text{ N }<\text{ Be }<\text{ B}\] done clear
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• question_answer81)
  Ionization potential is
  A)
   The tendency of an atom to lose an electron   done clear
  B)
   The tendency of an anion to lose electron done clear
  C)
   The tendency of cation to gain electron done clear
  D)
   The ratio of the cation to anion =radius done clear
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• question_answer82)
  Which of the following salt is not soluble in water?
  A)
   \[{{K}_{2}}C{{O}_{3}}\]                 done clear
  B)
          \[BaC{{O}_{3}}\]   done clear
  C)
   \[CaC{{l}_{2}}\]                done clear
  D)
          \[N{{a}_{2}}S{{O}_{4}}\] done clear
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• question_answer83)
  Which of the following has the highest melting point?
  A)
  \[BeC{{l}_{2}}\]                 done clear
  B)
          \[LiCl\] done clear
  C)
  \[AlC{{l}_{3}}\]                  done clear
  D)
          \[NaCl\]   done clear
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• question_answer84)
  Lanthanides and actinides are recognised as
  A)
   s- block element             done clear
  B)
   d-block element done clear
  C)
   f-block element    done clear
  D)
          p-block element done clear
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• question_answer85)
  Pair containing isoelectronic species is     
  A)
   \[H,He\]                              done clear
  B)
   \[N{{a}^{+}},Na\]         done clear
  C)
   \[Ne,{{F}^{-}}\]                  done clear
  D)
          \[F,Cl\]            done clear
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• question_answer86)
  The most non-metallic element is
  A)
   Na                                         done clear
  B)
   He done clear
  C)
   Cl                                           done clear
  D)
   F   done clear
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• question_answer87)
  The lightest metal in periodic table is
  A)
   Mg                        done clear
  B)
          Zn done clear
  C)
   Li                              done clear
  D)
          Na done clear
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• question_answer88)
  Which of the following has highest electro negativity?
  A)
   C                                            done clear
  B)
   Mg done clear
  C)
   0                               done clear
  D)
          S done clear
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• question_answer89)
  Element having atomic number 33 belongs to this group
  A)
   \[\text{III}\]                      done clear
  B)
          \[\text{IV}\] done clear
  C)
   \[\text{V}\]                                         done clear
  D)
   \[\text{VI}\] done clear
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