Periodic Trends in Chemical Properties of Elements
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313182 Highest electron affinity is shown by

1 \({\rm{L}}{{\rm{i}}^{\rm{ + }}}\)
2 \({\rm{N}}{{\rm{a}}^{\rm{ + }}}\)
3 \({\rm{C}}{{\rm{l}}^{\rm{ - }}}\)
4 \({{\rm{F}}^{\rm{ - }}}\)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313183 Which of the following is an endothermic process?

1 First electron affinity of chlorine
2 Second electron affinity of oxygen
3 Formation of NaCl from gaseous ions
4 Hydration of \({\rm{MgC}}{{\rm{l}}_{\rm{2}}}\)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313184 Which of the following is not the reason for the higher \({\rm{E}}{{\rm{A}}_{\rm{1}}}\) of halogens
I) High nuclear charge
II) Larger atomic size
III) Easy to get octet configuration, \({\rm{n}}{{\rm{s}}^{\rm{2}}}\,{\rm{n}}{{\rm{p}}^{\rm{6}}}\)
IV) Half filled p-orbitals
The correct answer is

1 I and IV
2 I, II and III
3 II and IV
4 II and III
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313185 Among halogens, the correct order of amount of energy released in electron gain (electron gain enthalpy) is

1 F > Cl > Br > I
2 F < Cl < Br < I
3 F < Cl > Br > I
4 F > Cl < Br < I
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313186 The electron gain enthalpies of the element is denoted as \({\Delta _{{\text{eg}}}}{\text{H}}\), the incorrect option is

1 \({\Delta _{{\rm{eg}}}}{\rm{H}}({\rm{Cl}}) < {\Delta _{{\rm{eg}}}}{\rm{H}}({\rm{F}})\)
2 \({\Delta _{{\rm{eg}}}}{\rm{H}}({\rm{Te}}) < {\Delta _{{\rm{eg}}}}{\rm{H}}({\rm{Po}})\)
3 \(\Delta_{\text {eg }} \mathrm{H}(\mathrm{I}) < \Delta_{\mathrm{eg}} \mathrm{H}(\mathrm{At})\)
4 \({\Delta _{{\text{eg}}}}{\text{H}}({\text{Se}}) < {\Delta _{{\text{eg}}}}{\text{H}}({\text{S}})\)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313182 Highest electron affinity is shown by

1 \({\rm{L}}{{\rm{i}}^{\rm{ + }}}\)
2 \({\rm{N}}{{\rm{a}}^{\rm{ + }}}\)
3 \({\rm{C}}{{\rm{l}}^{\rm{ - }}}\)
4 \({{\rm{F}}^{\rm{ - }}}\)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313183 Which of the following is an endothermic process?

1 First electron affinity of chlorine
2 Second electron affinity of oxygen
3 Formation of NaCl from gaseous ions
4 Hydration of \({\rm{MgC}}{{\rm{l}}_{\rm{2}}}\)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313184 Which of the following is not the reason for the higher \({\rm{E}}{{\rm{A}}_{\rm{1}}}\) of halogens
I) High nuclear charge
II) Larger atomic size
III) Easy to get octet configuration, \({\rm{n}}{{\rm{s}}^{\rm{2}}}\,{\rm{n}}{{\rm{p}}^{\rm{6}}}\)
IV) Half filled p-orbitals
The correct answer is

1 I and IV
2 I, II and III
3 II and IV
4 II and III
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313185 Among halogens, the correct order of amount of energy released in electron gain (electron gain enthalpy) is

1 F > Cl > Br > I
2 F < Cl < Br < I
3 F < Cl > Br > I
4 F > Cl < Br < I
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313186 The electron gain enthalpies of the element is denoted as \({\Delta _{{\text{eg}}}}{\text{H}}\), the incorrect option is

1 \({\Delta _{{\rm{eg}}}}{\rm{H}}({\rm{Cl}}) < {\Delta _{{\rm{eg}}}}{\rm{H}}({\rm{F}})\)
2 \({\Delta _{{\rm{eg}}}}{\rm{H}}({\rm{Te}}) < {\Delta _{{\rm{eg}}}}{\rm{H}}({\rm{Po}})\)
3 \(\Delta_{\text {eg }} \mathrm{H}(\mathrm{I}) < \Delta_{\mathrm{eg}} \mathrm{H}(\mathrm{At})\)
4 \({\Delta _{{\text{eg}}}}{\text{H}}({\text{Se}}) < {\Delta _{{\text{eg}}}}{\text{H}}({\text{S}})\)
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CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313182 Highest electron affinity is shown by

1 \({\rm{L}}{{\rm{i}}^{\rm{ + }}}\)
2 \({\rm{N}}{{\rm{a}}^{\rm{ + }}}\)
3 \({\rm{C}}{{\rm{l}}^{\rm{ - }}}\)
4 \({{\rm{F}}^{\rm{ - }}}\)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313183 Which of the following is an endothermic process?

1 First electron affinity of chlorine
2 Second electron affinity of oxygen
3 Formation of NaCl from gaseous ions
4 Hydration of \({\rm{MgC}}{{\rm{l}}_{\rm{2}}}\)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313184 Which of the following is not the reason for the higher \({\rm{E}}{{\rm{A}}_{\rm{1}}}\) of halogens
I) High nuclear charge
II) Larger atomic size
III) Easy to get octet configuration, \({\rm{n}}{{\rm{s}}^{\rm{2}}}\,{\rm{n}}{{\rm{p}}^{\rm{6}}}\)
IV) Half filled p-orbitals
The correct answer is

1 I and IV
2 I, II and III
3 II and IV
4 II and III
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313185 Among halogens, the correct order of amount of energy released in electron gain (electron gain enthalpy) is

1 F > Cl > Br > I
2 F < Cl < Br < I
3 F < Cl > Br > I
4 F > Cl < Br < I
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313186 The electron gain enthalpies of the element is denoted as \({\Delta _{{\text{eg}}}}{\text{H}}\), the incorrect option is

1 \({\Delta _{{\rm{eg}}}}{\rm{H}}({\rm{Cl}}) < {\Delta _{{\rm{eg}}}}{\rm{H}}({\rm{F}})\)
2 \({\Delta _{{\rm{eg}}}}{\rm{H}}({\rm{Te}}) < {\Delta _{{\rm{eg}}}}{\rm{H}}({\rm{Po}})\)
3 \(\Delta_{\text {eg }} \mathrm{H}(\mathrm{I}) < \Delta_{\mathrm{eg}} \mathrm{H}(\mathrm{At})\)
4 \({\Delta _{{\text{eg}}}}{\text{H}}({\text{Se}}) < {\Delta _{{\text{eg}}}}{\text{H}}({\text{S}})\)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313182 Highest electron affinity is shown by

1 \({\rm{L}}{{\rm{i}}^{\rm{ + }}}\)
2 \({\rm{N}}{{\rm{a}}^{\rm{ + }}}\)
3 \({\rm{C}}{{\rm{l}}^{\rm{ - }}}\)
4 \({{\rm{F}}^{\rm{ - }}}\)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313183 Which of the following is an endothermic process?

1 First electron affinity of chlorine
2 Second electron affinity of oxygen
3 Formation of NaCl from gaseous ions
4 Hydration of \({\rm{MgC}}{{\rm{l}}_{\rm{2}}}\)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313184 Which of the following is not the reason for the higher \({\rm{E}}{{\rm{A}}_{\rm{1}}}\) of halogens
I) High nuclear charge
II) Larger atomic size
III) Easy to get octet configuration, \({\rm{n}}{{\rm{s}}^{\rm{2}}}\,{\rm{n}}{{\rm{p}}^{\rm{6}}}\)
IV) Half filled p-orbitals
The correct answer is

1 I and IV
2 I, II and III
3 II and IV
4 II and III
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313185 Among halogens, the correct order of amount of energy released in electron gain (electron gain enthalpy) is

1 F > Cl > Br > I
2 F < Cl < Br < I
3 F < Cl > Br > I
4 F > Cl < Br < I
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313186 The electron gain enthalpies of the element is denoted as \({\Delta _{{\text{eg}}}}{\text{H}}\), the incorrect option is

1 \({\Delta _{{\rm{eg}}}}{\rm{H}}({\rm{Cl}}) < {\Delta _{{\rm{eg}}}}{\rm{H}}({\rm{F}})\)
2 \({\Delta _{{\rm{eg}}}}{\rm{H}}({\rm{Te}}) < {\Delta _{{\rm{eg}}}}{\rm{H}}({\rm{Po}})\)
3 \(\Delta_{\text {eg }} \mathrm{H}(\mathrm{I}) < \Delta_{\mathrm{eg}} \mathrm{H}(\mathrm{At})\)
4 \({\Delta _{{\text{eg}}}}{\text{H}}({\text{Se}}) < {\Delta _{{\text{eg}}}}{\text{H}}({\text{S}})\)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313182 Highest electron affinity is shown by

1 \({\rm{L}}{{\rm{i}}^{\rm{ + }}}\)
2 \({\rm{N}}{{\rm{a}}^{\rm{ + }}}\)
3 \({\rm{C}}{{\rm{l}}^{\rm{ - }}}\)
4 \({{\rm{F}}^{\rm{ - }}}\)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313183 Which of the following is an endothermic process?

1 First electron affinity of chlorine
2 Second electron affinity of oxygen
3 Formation of NaCl from gaseous ions
4 Hydration of \({\rm{MgC}}{{\rm{l}}_{\rm{2}}}\)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313184 Which of the following is not the reason for the higher \({\rm{E}}{{\rm{A}}_{\rm{1}}}\) of halogens
I) High nuclear charge
II) Larger atomic size
III) Easy to get octet configuration, \({\rm{n}}{{\rm{s}}^{\rm{2}}}\,{\rm{n}}{{\rm{p}}^{\rm{6}}}\)
IV) Half filled p-orbitals
The correct answer is

1 I and IV
2 I, II and III
3 II and IV
4 II and III
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313185 Among halogens, the correct order of amount of energy released in electron gain (electron gain enthalpy) is

1 F > Cl > Br > I
2 F < Cl < Br < I
3 F < Cl > Br > I
4 F > Cl < Br < I
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313186 The electron gain enthalpies of the element is denoted as \({\Delta _{{\text{eg}}}}{\text{H}}\), the incorrect option is

1 \({\Delta _{{\rm{eg}}}}{\rm{H}}({\rm{Cl}}) < {\Delta _{{\rm{eg}}}}{\rm{H}}({\rm{F}})\)
2 \({\Delta _{{\rm{eg}}}}{\rm{H}}({\rm{Te}}) < {\Delta _{{\rm{eg}}}}{\rm{H}}({\rm{Po}})\)
3 \(\Delta_{\text {eg }} \mathrm{H}(\mathrm{I}) < \Delta_{\mathrm{eg}} \mathrm{H}(\mathrm{At})\)
4 \({\Delta _{{\text{eg}}}}{\text{H}}({\text{Se}}) < {\Delta _{{\text{eg}}}}{\text{H}}({\text{S}})\)