-
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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
View Solution play_arrow
-
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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