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question_answer1)
Electron affinity depends on [MP PMT 2002]
A)
Atomic size done
clear
B)
Nuclear charge done
clear
C)
Atomic number done
clear
D)
Atomic size and nuclear charge both done
clear
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question_answer2)
Increasing order of electron affinity is [RPET 2003]
A)
\[N<O<Cl<Al\] done
clear
B)
\[O<N<Al<Cl\] done
clear
C)
\[Al<N<O<Cl\] done
clear
D)
\[Cl<N<O<Al\] done
clear
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question_answer3)
The correct order of electron affinity of B, C, N, O is [MP PET 1997; J & K 2005]
A)
\[O>C>N>B\] done
clear
B)
\[B>N>C>O\] done
clear
C)
\[O>C>B>N\] done
clear
D)
\[O>B>C>N\] done
clear
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question_answer4)
Which one has maximum electron affinity [Roorkee 1995]
A)
N done
clear
B)
Be done
clear
C)
B done
clear
D)
Cl done
clear
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question_answer5)
The electron affinity for the inert gases is [Kurukshetra CEE 1998; MP PMT 2002]
A)
Zero done
clear
B)
High done
clear
C)
Negative done
clear
D)
Positive done
clear
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question_answer6)
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 [MP PMT 1997]
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_answer7)
Which one of the following is an incorrect statement [MP PMT 2001]
A)
The ionisation potential of nitrogen is greater than that of oxygen done
clear
B)
The electron affinity of fluorine is greater than that of chlorine done
clear
C)
The ionisation potential of beryllium is greater than that of boron done
clear
D)
The electronegativity of fluorine is greater than that of chlorine done
clear
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question_answer8)
Electron affinity is the [MP PMT 1993]
A)
Energy absorbed when an electron is added to an isolated atom in the gaseous state done
clear
B)
Energy released when an electron is added to an isolated atom in the gaseous state done
clear
C)
Energy required to take out an electron from an isolated gaseous atom done
clear
D)
Power of an atom to attract an electron to itself done
clear
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question_answer9)
The electron affinity values for the halogens show the following trend [Kerala PET 2002]
A)
\[F<Cl>Br>I\] done
clear
B)
\[F<Cl<Br<I\] done
clear
C)
\[F>Cl>Br>I\] done
clear
D)
\[F<Cl>Br<I\] done
clear
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question_answer10)
Which element has maximum electron affinity
A)
Na done
clear
B)
S done
clear
C)
Mg done
clear
D)
Al done
clear
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question_answer11)
Which of the following has the least electron affinity in \[kJmo{{l}^{-1}}\] [AFMC 2000]
A)
Oxygen done
clear
B)
Carbon done
clear
C)
Nitrogen done
clear
D)
Boron done
clear
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question_answer12)
Fluorine has low electron affinity than chlorine because of [CPMT 1997]
A)
Smaller radius of fluorine, high density done
clear
B)
Smaller radius of chlorine, high density done
clear
C)
Bigger radius of fluorine, less density done
clear
D)
Smaller radius of chlorine, less density done
clear
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question_answer13)
For electron affinity of halogens which of the following is correct [AIIMS 2004]
A)
\[Br>F\] done
clear
B)
\[F>Cl\] done
clear
C)
\[Br<Cl\] done
clear
D)
\[F>I\] done
clear
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question_answer14)
Ionic compounds are formed most easily with [DPMT 2005]
A)
Low electron affinity, high ionisation energy done
clear
B)
High electron affinity, low ionisation energy done
clear
C)
Low electron affinity, low ionisation energy done
clear
D)
High electron affinity, high ionisation energy done
clear
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question_answer15)
In comparison with alkali metals, the electron affinity of halogens is
A)
Very high done
clear
B)
Very low done
clear
C)
Nearly same done
clear
D)
Exactly same done
clear
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question_answer16)
The electron affinity of [CPMT 1994]
A)
Carbon is greater than oxygen done
clear
B)
Sulphur is less than oxygen done
clear
C)
Iodine is greater than bromine done
clear
D)
Bromine is less than chlorine done
clear
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question_answer17)
The amount of energy which is released due to addition of extra electron to the outermost orbit of gaseous atom is called [BHU 1996]
A)
Electron capacity done
clear
B)
Electron affinity done
clear
C)
Ionisation potential done
clear
D)
Electronegativity done
clear
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question_answer18)
Which of the following species has the highest electron affinity [KCET 1996]
A)
\[F\] done
clear
B)
\[O\] done
clear
C)
\[{{O}^{-}}\] done
clear
D)
\[N{{a}^{+}}\] done
clear
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question_answer19)
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 [EAMCET 2003]
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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question_answer20)
Nitrogen has lower electron affinity than its preceeding element carbon because
A)
Electron affinity decreases along a period done
clear
B)
Electron affinity generally increases along a period done
clear
C)
Nitrogen atom has half filled p-orbital done
clear
D)
Nitrogen is a p-block element done
clear
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question_answer21)
Electron affinity is the lowest for
A)
Nitrogen done
clear
B)
Carbon done
clear
C)
Oxygen done
clear
D)
Sulphur done
clear
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question_answer22)
Which one of the elements has the maximum electron affinity [CPMT 1986; AFMC 1992, 95; Bihar MEE 1996; BHU 1997; CBSE PMT 1996, 99; MP PET 1995, 2001; AMU 2000]
A)
F done
clear
B)
Cl done
clear
C)
Br done
clear
D)
I done
clear
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question_answer23)
Which among the following factors is the most important in making fluorine the strongest oxidizing halogen [AIEEE 2004]
A)
Hydration enthalpy done
clear
B)
Ionization enthalpy done
clear
C)
Electron affinity done
clear
D)
Bond dissociation energy done
clear
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question_answer24)
Which of the following pairs show reverse properties on moving along a period from left to right and from top to down in a group [DCE 2003]
A)
Nuclear charge and electron affinity done
clear
B)
Ionisation energy and electron affinity done
clear
C)
Atomic radius and electron affinity done
clear
D)
None of these done
clear
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question_answer25)
Which of the following properties show gradual decrease with increase in atomic number across a period in the periodic table [Pb. CET 2003]
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_answer26)
Order of electron affinity of \[F,\ Cl,\ Br\]and I is..... [AFMC 1999; Orissa JEE 2004,05]
A)
\[F<Cl>Br>I\] done
clear
B)
\[F>Cl>Br>I\] done
clear
C)
\[F<Cl<Br<I\] done
clear
D)
\[F>Cl<Br>I\] done
clear
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question_answer27)
Which one of the following arrangements represents the correct order of electron gain enthalpy (with negative sign) of the given atomic species. [CBSE PMT 2005]
A)
\[O<S<F<Cl\] done
clear
B)
\[Cl<F<S<O\] done
clear
C)
\[S<O<Cl<F\] done
clear
D)
\[F<Cl<O<S\] done
clear
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