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

done Atomic and lonic radii Total Questions - 72

• question_answer1)
  The ratio between radii of \[H{{e}^{+}}\] ion and H atom is [MP PET 1996]
  A)
  \[\frac{1}{2}\] done clear
  B)
  1 done clear
  C)
  \[\frac{3}{2}\] done clear
  D)
  2 done clear
  View Solution play_arrow

• question_answer2)
  The smallest among the following ions is [JIPMER 1999]
  A)
  \[N{{a}^{+}}\] done clear
  B)
  \[M{{g}^{+2}}\] done clear
  C)
  \[B{{a}^{2+}}\] done clear
  D)
  \[A{{l}^{3+}}\] done clear
  View Solution play_arrow

• question_answer3)
  Which is smallest in size [RPMT 1997]
  A)
  \[{{O}^{2-}}\] done clear
  B)
  \[{{C}^{4-}}\] done clear
  C)
  \[{{F}^{-}}\] done clear
  D)
  \[{{N}^{3-}}\] done clear
  View Solution play_arrow

• question_answer4)
  Which of the following has largest size [MP PMT 1995, 2003; JIPMER (Med.) 2002]
  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_answer5)
  Of the following, the one with largest size is [EAMCET 1997; BHU 1999]
  A)
  \[C{{l}^{-}}\] done clear
  B)
  \[Ar\] done clear
  C)
  \[{{K}^{+}}\] done clear
  D)
  \[C{{a}^{2+}}\] done clear
  View Solution play_arrow

• question_answer6)
  Which cation has smallest radius [RPET 2000]
  A)
  \[{{K}^{+}}\] done clear
  B)
  \[N{{a}^{+}}\] done clear
  C)
  \[L{{i}^{+}}\] done clear
  D)
  \[B{{e}^{2+}}\] done clear
  View Solution play_arrow

• question_answer7)
  The radii of \[F,\,{{F}^{-}},\,O\] and \[{{O}^{-2}}\] are in the order of [AIIMS 1999; CPMT 1999]
  A)
  \[{{O}^{2-}}>{{F}^{-}}>O>F\] done clear
  B)
  \[{{O}^{2-}}>{{F}^{-}}>F>O\] done clear
  C)
  \[{{F}^{-}}>{{O}^{2-}}>F>O\] done clear
  D)
  \[{{O}^{2-}}>O>{{F}^{-}}>F\] done clear
  View Solution play_arrow

• question_answer8)
  Which of the following has the smallest size [CBSE PMT 1996]
  A)
  \[N{{a}^{+}}\] done clear
  B)
  \[M{{g}^{+2}}\] done clear
  C)
  \[C{{l}^{-}}\] done clear
  D)
  \[{{F}^{-}}\] done clear
  View Solution play_arrow

• question_answer9)
  Which of the following is largest [CBSE PMT 1996]
  A)
  \[C{{l}^{-}}\] done clear
  B)
  \[{{S}^{2-}}\] done clear
  C)
  \[N{{a}^{+}}\] done clear
  D)
  \[{{F}^{-}}\] done clear
  View Solution play_arrow

• question_answer10)
  Which of the following property displays progressive increase down a group in the Bohr's periodic table
  A)
  Electronegativity done clear
  B)
  Electron affinity done clear
  C)
  Ionization potential done clear
  D)
  Size of the atom done clear
  View Solution play_arrow

• question_answer11)
  Atomic radii of fluorine and neon in angstrom units are respectively given by [IIT 1987]
  A)
  0.762, 1.60 done clear
  B)
  1.60, 1.60 done clear
  C)
  0.72, 0.72 done clear
  D)
  None of these values done clear
  View Solution play_arrow

• question_answer12)
  Which ion has greatest radius in the following [CPMT 1976; NCERT 1977]
  A)
  \[{{H}^{-}}\] done clear
  B)
  \[{{F}^{-}}\] done clear
  C)
  \[B{{r}^{-}}\] done clear
  D)
  \[{{I}^{-}}\] done clear
  View Solution play_arrow

• question_answer13)
  Which has the maximum atomic radius [CPMT 1975; AIIMS 1982; DPMT 1982]
  A)
  \[Al\] done clear
  B)
  \[Si\] done clear
  C)
  P done clear
  D)
  \[Mg\] done clear
  View Solution play_arrow

• question_answer14)
  Which one of the following ions has the highest value of ionic radius   [AIEEE 2004]
  A)
  \[{{O}^{2-}}\] done clear
  B)
  \[{{B}^{3+}}\] done clear
  C)
  \[L{{i}^{+}}\] done clear
  D)
  \[{{F}^{-}}\] done clear
  View Solution play_arrow

• question_answer15)
  On going down a main sub-group in the periodic table (example \[Li\] to \[Cs\] in IA or \[Be\] to \[Ra\] in IIA), the expected trend of changes in atomic radius is a [CPMT 1981; NCERT 1979]
  A)
  Continuous increase done clear
  B)
  Continuous decrease done clear
  C)
  Periodic one, an increase followed by a decrease done clear
  D)
  A decrease followed by increase done clear
  View Solution play_arrow

• question_answer16)
  Which one of the following is the smallest in size [IIT 1989]
  A)
  \[{{N}^{3-}}\] done clear
  B)
  \[{{O}^{2-}}\] done clear
  C)
  \[{{F}^{-}}\] done clear
  D)
  \[N{{a}^{+}}\] done clear
  View Solution play_arrow

• question_answer17)
  Which one is the correct order of the size of the iodine species [Pb. CET 1986; CBSE PMT 1997; Kurukshetra CEE 1998; RPMT 1999; DCE 1999; MP PET 2000; MP PMT 2001; BCECE 2005]
  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_answer18)
  Which one has larger radius [CPMT 1997; KCET 2005]
  A)
  \[N{{a}^{+}}\] done clear
  B)
  \[F\] done clear
  C)
  \[{{F}^{-}}\] done clear
  D)
  \[Na\] done clear
  View Solution play_arrow

• question_answer19)
  In third row of periodic table the atomic radii from \[Na\] to \[Cl\] [MP PMT 1986]
  A)
  Continuosly decreases done clear
  B)
  Continuosly increases done clear
  C)
  Remains constant done clear
  D)
  Increases but not continuously done clear
  View Solution play_arrow

• question_answer20)
  The size of the following species increases in the order [IIT-JEE 1990; AFMC 1995]
  A)
  \[M{{g}^{2+}}<N{{a}^{+}}<{{F}^{-}}<Al\] done clear
  B)
  \[{{F}^{-}}<Al<N{{a}^{+}}>M{{g}^{2+}}\] done clear
  C)
  \[Al<Mg<{{F}^{-}}<N{{a}^{+}}\] done clear
  D)
  \[N{{a}^{+}}<Al<{{F}^{-}}<M{{g}^{2+}}\] done clear
  View Solution play_arrow

• question_answer21)
  In \[{{K}^{+}}{{F}^{-}}\] ionic radius of \[{{F}^{-}}\] is more while atomic radius of \[{{K}^{+}}\] is [CPMT 1997]
  A)
  Less than \[{{F}^{-}}\] done clear
  B)
   More than \[{{F}^{-}}\] done clear
  C)
  Equal of \[{{F}^{-}}\] done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer22)
  Which one of the following species possesses maximum size [EAMCET 1993; MP PET 2001]
  A)
  \[N{{a}^{+}}\] done clear
  B)
  \[{{F}^{-}}\] done clear
  C)
  \[Ne\] done clear
  D)
  \[{{O}^{2-}}\] done clear
  View Solution play_arrow

• question_answer23)
  The ionic radii of \[{{N}^{3-}}\], \[{{O}^{2-}}\], \[{{F}^{-}}\] and \[N{{a}^{+}}\] follow the order [MP PET/PMT 1998; MP PMT 2000]
  A)
  \[{{N}^{3-}}>{{O}^{2-}}>{{F}^{-}}>N{{a}^{+}}\] done clear
  B)
  \[{{N}^{3-}}>N{{a}^{+}}>{{O}^{2-}}>{{F}^{-}}\] done clear
  C)
  \[N{{a}^{+}}>{{O}^{2-}}>{{N}^{3-}}>{{F}^{-}}\] done clear
  D)
  \[{{O}^{2-}}>{{F}^{-}}>N{{a}^{+}}>{{N}^{3-}}\] done clear
  View Solution play_arrow

• question_answer24)
  On moving down a group of regular elements, both atomic and ionic radii increases with increasing [BMEE 1995]
  A)
  Atomic number done clear
  B)
  Atomic weight done clear
  C)
  Atomic mass done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer25)
  Which one of the following indicates the correct order of atomic size [EAMCET 1989]
  A)
  Be > F > C > Ne done clear
  B)
  Be < C < F < Ne done clear
  C)
  Be > C > F > Ne done clear
  D)
  F < Ne < Be < C done clear
  View Solution play_arrow

• question_answer26)
  Which has the smallest size [MP PET 1999]
  A)
  \[N{{a}^{+}}\] done clear
  B)
  \[M{{g}^{2+}}\] done clear
  C)
  \[A{{l}^{3+}}\] done clear
  D)
  \[{{P}^{5+}}\] done clear
  View Solution play_arrow

• question_answer27)
  A sodium cation has a different number of electrons from
  A)
  \[{{O}^{2-}}\] done clear
  B)
  \[{{F}^{-}}\] done clear
  C)
  \[L{{i}^{-}}\] done clear
  D)
  \[A{{l}^{3+}}\] done clear
  View Solution play_arrow

• question_answer28)
  Which of the following statement concerning lanthanides elements is false [CBSE PMT 1994]
  A)
  Lanthanides are separated from one another by ion exchange method done clear
  B)
  Ionic radii of trivalent lanthanides steadily increases with increase in the atomic number done clear
  C)
  All lanthanides are highly dense metals done clear
  D)
  More characteristic oxidation state of lanthanide elements is  +3 done clear
  View Solution play_arrow

• question_answer29)
  The lanthanide contraction is responsible for the fact that [CBSE PMT 1997]
  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
  View Solution play_arrow

• question_answer30)
  Elements of which group form anions most readily [CBSE PMT 1992]
  A)
  Oxygen family done clear
  B)
  Nitrogen group done clear
  C)
  Halogens done clear
  D)
  Alkali metals done clear
  View Solution play_arrow

• question_answer31)
  The unit representing atomic radii and ionic radii is
  A)
  \[nm~~~~~~~~\] done clear
  B)
  \[cm\] done clear
  C)
  \[\overset{\text{o}}{\mathop{\text{A}}}\,\] done clear
  D)
  \[m\] done clear
  View Solution play_arrow

• question_answer32)
  The atomic radii in periodic table among elements from right to left [MP PET 1995]
  A)
  Decreases done clear
  B)
  Increases done clear
  C)
  Remain constant done clear
  D)
  First decreases and then increases done clear
  View Solution play_arrow

• question_answer33)
  Of the following the ion with the smallest ionic radius is [MP PET 1996]
  A)
  \[{{K}^{+}}\] done clear
  B)
  \[C{{a}^{2+}}\] done clear
  C)
  \[T{{i}^{3+}}\] done clear
  D)
  \[T{{i}^{4+}}\] done clear
  View Solution play_arrow

• question_answer34)
  Which of the following does not represent the correct order of the property indicated [CBSE PMT 1997]
  A)
  \[S{{c}^{3+}}>C{{r}^{3+}}>F{{e}^{3+}}>M{{n}^{3+}}\] ionic radii done clear
  B)
  \[Sc<Ti<Cr<Mn\] Density done clear
  C)
  \[M{{n}^{2+}}>N{{i}^{2+}}<C{{o}^{2+}}<F{{e}^{2+}}\] ionic radii done clear
  D)
  \[FeO<CaO>MnO>CuO\] Basic nature done clear
  View Solution play_arrow

• question_answer35)
  The order of magnitude of ionic radii of ions \[N{{a}^{+}},M{{g}^{2+}},A{{l}^{3+}}\] and \[S{{i}^{4+}}\] is [MP PMT 1996]
  A)
  \[N{{a}^{+}}<M{{g}^{2+}}<A{{l}^{3+}}<S{{i}^{4+}}\] done clear
  B)
  \[M{{g}^{2+}}>N{{a}^{+}}>A{{l}^{3+}}>S{{i}^{4+}}\] done clear
  C)
  \[A{{l}^{3+}}>N{{a}^{+}}>S{{i}^{4+}}>M{{g}^{2+}}\] done clear
  D)
  \[N{{a}^{+}}>M{{g}^{2+}}>A{{l}^{3+}}>S{{i}^{4+}}\] done clear
  View Solution play_arrow

• question_answer36)
  The order of the magnitude of ionic radii of ions \[{{N}^{3-}},{{O}^{2-}}\] and \[{{F}^{-}}\]is [MP PMT 1996]
  A)
  \[{{N}^{3-}}>{{O}^{2-}}>{{F}^{-}}\] done clear
  B)
  \[{{N}^{3-}}<{{O}^{2-}}<{{F}^{-}}\] done clear
  C)
  \[{{N}^{3-}}>{{O}^{2-}}>{{F}^{-}}\] done clear
  D)
  \[{{N}^{3-}}<{{O}^{2-}}>{{F}^{-}}\] done clear
  View Solution play_arrow

• question_answer37)
  Which statement is correct
  A)
  For potassium, the atomic radius < ionic radius; but for bromine, the atomic radius > ionic radius done clear
  B)
  For potassium and bromine both, the atomic radii > ionic radii done clear
  C)
  For potassium and bromine both, the atomic radii < ionic radii done clear
  D)
  For potassium, the atomic radius > ionic radius but for bromine, the atomic radius < ionic radius done clear
  View Solution play_arrow

• question_answer38)
  Which of the following ion is the smallest ion [AIIMS 2001]
  A)
  \[O_{2}^{+}\] done clear
  B)
  \[O_{2}^{-}\] done clear
  C)
  \[{{O}_{2}}\] done clear
  D)
  \[O_{2}^{-2}\] done clear
  View Solution play_arrow

• question_answer39)
  The correct order of radii is [IIT-JEE (Screening) 2000]
  A)
  \[N<Be<B\] done clear
  B)
  \[{{F}^{-}}<{{O}^{2-}}<{{N}^{3-}}\] done clear
  C)
  \[Na<Li<K\] done clear
  D)
  \[F{{e}^{3+}}<F{{e}^{2+}}<F{{e}^{4+}}\] done clear
  View Solution play_arrow

• question_answer40)
  Which one of the following should be most stable [MP PET 2000]
  A)
  \[H_{2}^{+}\] done clear
  B)
  \[{{H}^{+}}\] done clear
  C)
  \[H\] done clear
  D)
  \[{{H}^{-}}\] done clear
  View Solution play_arrow

• question_answer41)
  Which of the following is the correct order of ionic radii [BHU 2002]
  A)
  \[F>Li>Na>K\] done clear
  B)
  \[F>K>Na>Li\] done clear
  C)
  \[Na>K>F>Li\] done clear
  D)
  \[Li>Na>K>F\] done clear
  View Solution play_arrow

• question_answer42)
  Smallest among these species is [KCET 2002]
  A)
  Lithium ion done clear
  B)
  Hydrogen done clear
  C)
  Lithium done clear
  D)
  Helium done clear
  View Solution play_arrow

• question_answer43)
  Which of the following ionic radius would be maximum [MP PET 1997]
  A)
  \[{{C}^{4-}}\] done clear
  B)
  \[{{N}^{3-}}\] done clear
  C)
  \[{{O}^{2-}}\] done clear
  D)
  \[M{{g}^{2+}}\] done clear
  View Solution play_arrow

• question_answer44)
  Which is helpful in the formation of ionic bond
  A)
  Only small cation done clear
  B)
  Only small anion done clear
  C)
  Small cation and small anion both done clear
  D)
  Low positive charge, large cation and small anion done clear
  View Solution play_arrow

• question_answer45)
  Which of the following has largest ionic radius  [AFMC 1999; BHU 2003]
  A)
  \[C{{s}^{+}}\] done clear
  B)
  \[L{{i}^{+}}\] done clear
  C)
  \[N{{a}^{+}}\] done clear
  D)
  \[{{K}^{+}}\] done clear
  View Solution play_arrow

• question_answer46)
  Point out the wrong statement : On moving horizontally from left to right across a period in the periodic table
  A)
  Metallic character decreases done clear
  B)
  Electronegativity increases done clear
  C)
  Gram atomic volume first decreases and then increases done clear
  D)
  Size of the atoms increases for normal elements done clear
  View Solution play_arrow

• question_answer47)
  Which of the following statements is correct [MP PET 1997]
  A)
  \[{{X}^{-}}\] ion is larger in size than X atom done clear
  B)
  \[{{X}^{+}}\] ion is larger in size than X atom done clear
  C)
  \[{{X}^{+}}\] ion is larger in size than \[{{X}^{-}}\] ion done clear
  D)
  \[{{X}^{+}}\] and \[{{X}^{-}}\] ions are equal in size done clear
  View Solution play_arrow

• question_answer48)
  The atomic radius of elements of which of the following series would be nearly the same [MP PET 1997]
  A)
  \[Na\]\[K\]\[Rb\]\[Cs\] done clear
  B)
  \[Li\]\[Be\]\[B\]\[C\] done clear
  C)
  \[Fe\]\[Co\]\[Ni\]\[Cu\] done clear
  D)
  \[F\]\[Cl\]\[Br\]\[I\] done clear
  View Solution play_arrow

• question_answer49)
  The decreasing order of size of isoelectronic series \[{{K}^{+}},\,C{{a}^{2+}},\,C{{l}^{-}}\] and \[{{S}^{2-}}\] is [Roorkee 1995]
  A)
  \[{{K}^{+}}>C{{a}^{2+}}>{{S}^{2-}}>C{{l}^{-}}\] done clear
  B)
  \[{{K}^{+}}>C{{a}^{2+}}>C{{l}^{-}}>{{S}^{2-}}\] done clear
  C)
  \[C{{a}^{2+}}>{{K}^{+}}>C{{l}^{-}}>{{S}^{2-}}\] done clear
  D)
  \[{{S}^{2-}}>C{{l}^{-}}>{{K}^{+}}>C{{a}^{2+}}\] done clear
  View Solution play_arrow

• question_answer50)
  Which of the following sets of elements have the strongest tendency to form anions [MP PET 1993]
  A)
  N, O, F done clear
  B)
  P, S, Cl done clear
  C)
  As, Se, Br done clear
  D)
  Sb, Te, I done clear
  View Solution play_arrow

• question_answer51)
  Radius of the isoelectronic species [MP PET 1994]
  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
  View Solution play_arrow

• question_answer52)
  In which of the following pairs the difference between the covalent radii of the two metals is maximum [MP PET 1994]
  A)
  K, Ca done clear
  B)
  Mn , Fe done clear
  C)
  Co , Ni done clear
  D)
  Cr , Mn done clear
  View Solution play_arrow

• question_answer53)
  An atom of an element has electronic configuration 2, 8, 1. Which of the following statement is correct [MP PMT 1994]
  A)
  The element's valency is 7 done clear
  B)
  The element exists as a diatomic molecule done clear
  C)
  The element is of non-metallic nature done clear
  D)
  The element forms a basic oxide done clear
  View Solution play_arrow

• question_answer54)
  Which of the following ions has the smallest radius [KCET 1992]
  A)
  \[B{{e}^{2+}}\] done clear
  B)
  \[L{{i}^{+}}\] done clear
  C)
  \[{{O}^{2-}}\] done clear
  D)
  \[{{F}^{-}}\] done clear
  View Solution play_arrow

• question_answer55)
  Point out the wrong statement : In a given period of the periodic table the s - block element has, in general, a lower value of [MP PMT 1997]
  A)
  Ionisation energy done clear
  B)
  Electronegativity done clear
  C)
  Atomic radius done clear
  D)
  Electron affinity done clear
  View Solution play_arrow

• question_answer56)
  Arrange the following in increasing order of their atomic radius : \[Na,\,K,\,Mg,\,Rb\] [AFMC 1995, 97; CPMT 1999]
  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
  View Solution play_arrow

• question_answer57)
  In the isoelectronic species the ionic radii \[\left( \overset{\text{o}}{\mathop{\text{A}}}\, \right)\] of \[{{N}^{3-}}\], \[{{O}^{2-}}\] and \[{{F}^{-}}\] are respectively given by [Pb. CET 1989]
  A)
  1.36, 1.40, 1.71 done clear
  B)
  1.36, 1.71, 1.40 done clear
  C)
  1.71, 1.40, 1.36 done clear
  D)
  1.71, 1.36, 1.40 done clear
  View Solution play_arrow

• question_answer58)
  \[A{{l}^{3+}}\] has a lower ionic radius than \[M{{g}^{2+}}\] because [EAMCET 1992]
  A)
  \[Mg\] atom has less number of neutrons than \[Al\] done clear
  B)
  \[A{{l}^{3+}}\] has a higher nuclear charge than \[M{{g}^{2+}}\] done clear
  C)
  Their electronegativities are different done clear
  D)
  \[Al\] has a lower ionisation potential than \[Mg\] atom done clear
  View Solution play_arrow

• question_answer59)
  When a neutral atom is converted into cation, there is [EAMCET 1986]
  A)
  Decrease in the atomic number done clear
  B)
  An increase in the atomic number done clear
  C)
  A decrease in size done clear
  D)
  An increase in size done clear
  View Solution play_arrow

• question_answer60)
  A trend common to both groups I and VII elements in the periodic table as atomic number increases is [NCERT 1981; EAMCET 1980]
  A)
  Oxidising power increases done clear
  B)
  Atomic radius increases done clear
  C)
  Maximum valency increases done clear
  D)
  Reactivity with water increases done clear
  View Solution play_arrow

• question_answer61)
  Increasing order of atomic radii is [RPET 2003]
  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
  View Solution play_arrow

• question_answer62)
  Chloride ion and potassium ion are isoelectronic. Then [KCET 2002]
  A)
  Potassium ion is relatively bigger done clear
  B)
  Depends on the other cation and anion done clear
  C)
  Their size are same done clear
  D)
  Chloride ion is bigger than potassium ion done clear
  View Solution play_arrow

• question_answer63)
  Which of the following has the largest ionic radius [Pb. PMT 2002; BHU 2003]
  A)
  \[N{{a}^{+}}\] done clear
  B)
  \[N{{i}^{+}}\] done clear
  C)
  \[C{{s}^{+}}\] done clear
  D)
  \[M{{g}^{+2}}\] done clear
  View Solution play_arrow

• question_answer64)
  The ionic radii of \[L{{i}^{+}},N{{a}^{+}},{{K}^{+}}\]are in which of the following order [MP PMT 2002]
  A)
  \[{{K}^{+}}>N{{a}^{+}}>L{{i}^{+}}\] done clear
  B)
  \[{{K}^{+}}>N{{a}^{+}}<L{{i}^{+}}\] done clear
  C)
  \[{{K}^{+}}<N{{a}^{+}}<L{{i}^{+}}\] done clear
  D)
  \[L{{i}^{+}}>N{{a}^{+}}<{{K}^{+}}\] done clear
  View Solution play_arrow

• question_answer65)
  Which of the following has smallest size  [JIPMER (Med.) 2002]
  A)
  \[M{{g}^{2+}}\] done clear
  B)
  \[N{{a}^{+}}\] done clear
  C)
  \[A{{l}^{3+}}\] done clear
  D)
  \[S{{i}^{4+}}\] done clear
  View Solution play_arrow

• question_answer66)
  Which one of the following is expected to have largest size [UPSEAT 2004]
  A)
  \[{{F}^{-}}\] done clear
  B)
  \[{{O}^{-2}}\] done clear
  C)
  \[A{{l}^{+3}}\] done clear
  D)
  \[{{N}^{-3}}\] done clear
  View Solution play_arrow

• question_answer67)
  The trivalent ion having largest size in lanthanide series is [Pb.PMT 2004]
  A)
  \[Ti\] done clear
  B)
  Zr done clear
  C)
  Hf done clear
  D)
  La done clear
  View Solution play_arrow

• question_answer68)
  Which of the following alkali metal ions has lowest ionic mobility in aqueous solutions  [DPMT 2004]
  A)
  \[R{{b}^{+}}\] done clear
  B)
  \[C{{s}^{+}}\] done clear
  C)
  \[L{{i}^{+}}\] done clear
  D)
  \[N{{a}^{+}}\] done clear
  View Solution play_arrow

• question_answer69)
  Ionic radii are   [CBSE PMT 2003, 04]
  A)
  Directly proportional to effective nuclear charge done clear
  B)
  Directly proportional to square of effective nuclear charge done clear
  C)
  Inversely proportional to effective nuclear charge done clear
  D)
  Inversely proportional to square of effective nuclear charge. done clear
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• question_answer70)
  The correct sequence of increasing covalent character is represented by  [CBSE PMT 2005]
  A)
  \[LiCl<NaCl<BeC{{l}_{2}}\] done clear
  B)
  \[BeC{{l}_{2}}<NaCl<LiCl\] done clear
  C)
  \[NaCl<LiCl<BeCl\] done clear
  D)
  \[BeC{{l}_{2}}<LiCl<NaCl\] done clear
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• question_answer71)
  Correct energy value order is   [Orissa JEE 2004]
  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_answer72)
  The ionic conductance of following cation in a given concentration are in the order  [Orissa JEE 2004]
  A)
  \[L{{i}^{+}}<N{{a}^{+}}>{{K}^{+}}<R{{b}^{+}}\] done clear
  B)
  \[L{{i}^{+}}>N{{a}^{+}}>{{K}^{+}}>R{{b}^{+}}\] done clear
  C)
  \[L{{i}^{+}}<N{{a}^{+}}>{{K}^{+}}>R{{b}^{+}}\] done clear
  D)
  \[L{{i}^{+}}=N{{a}^{+}}<{{K}^{+}}<R{{b}^{+}}\] done clear
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