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

313207 Which will have the maximum value of electron affinity \({{\rm{O}}^{\rm{x}}},{{\rm{O}}^{\rm{y}}},{{\rm{O}}^{\rm{z}}}\) (x, y and z respectively are \(0,-1\) and \(-\)2 ?

1 \({{\rm{O}}^{\rm{x}}}\)
2 \({{\rm{O}}^{\rm{y}}}\)
3 \({{\rm{O}}^{\rm{z}}}\)
4 All have equal
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313208 From the following given electronic configurations, identify the correct order of electron affinity
\({\text{(I) [He]}}\,{\text{2}}{{\text{s}}^{\text{2}}}{\text{2}}{{\text{p}}^{\text{5}}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\text{(II)}}\,\,{\text{[He]}}\,{\text{2}}{{\text{s}}^{\text{2}}}{\text{2}}{{\text{p}}^{\text{3}}}\)
\(({\text{III)}}\,{\text{[Ne]}}\,{\text{3}}{{\text{s}}^{\text{2}}}{\text{3}}{{\text{p}}^{\text{5}}}\,\,\,\,\,\,\,\,\,\,\,{\text{(IV) [Ne]}}\,{\text{3}}{{\text{s}}^{\text{2}}}{\text{3}}{{\text{p}}^{\text{3}}}\)

1 I \(>\) II \(>\) III \(>\) IV
2 III \(>\) I \(>\) IV \(>\) II
3 I \( < \) II \( < \) III \( < \) IV
4 II \(>\) III \(>\) IV \(>\) I
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313209 The correct sequence of electron gain enthalpy of the elements listed below is
\({\rm{(I)Ar}}\,\,\,{\rm{(II)Br}}\quad {\rm{(III)F}}\,\,\,\,{\rm{(IV)S}}\)
Choose the most appropriate from the options given below

1 (I) \({\mathrm{>}}\) (IV) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (III)
2 (IV) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (II)
3 (I) \({\mathrm{>}}\) (IV) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (II)
4 (III) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (IV) \({\mathrm{>}}\) (I)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313210 Assertion :
Electron gain enthalpy can be exothermic or endothermic.
Reason :
Electron gain enthalpy provides a measure of the ease with which an atom adds an electron to form anion.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313207 Which will have the maximum value of electron affinity \({{\rm{O}}^{\rm{x}}},{{\rm{O}}^{\rm{y}}},{{\rm{O}}^{\rm{z}}}\) (x, y and z respectively are \(0,-1\) and \(-\)2 ?

1 \({{\rm{O}}^{\rm{x}}}\)
2 \({{\rm{O}}^{\rm{y}}}\)
3 \({{\rm{O}}^{\rm{z}}}\)
4 All have equal
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313208 From the following given electronic configurations, identify the correct order of electron affinity
\({\text{(I) [He]}}\,{\text{2}}{{\text{s}}^{\text{2}}}{\text{2}}{{\text{p}}^{\text{5}}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\text{(II)}}\,\,{\text{[He]}}\,{\text{2}}{{\text{s}}^{\text{2}}}{\text{2}}{{\text{p}}^{\text{3}}}\)
\(({\text{III)}}\,{\text{[Ne]}}\,{\text{3}}{{\text{s}}^{\text{2}}}{\text{3}}{{\text{p}}^{\text{5}}}\,\,\,\,\,\,\,\,\,\,\,{\text{(IV) [Ne]}}\,{\text{3}}{{\text{s}}^{\text{2}}}{\text{3}}{{\text{p}}^{\text{3}}}\)

1 I \(>\) II \(>\) III \(>\) IV
2 III \(>\) I \(>\) IV \(>\) II
3 I \( < \) II \( < \) III \( < \) IV
4 II \(>\) III \(>\) IV \(>\) I
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313209 The correct sequence of electron gain enthalpy of the elements listed below is
\({\rm{(I)Ar}}\,\,\,{\rm{(II)Br}}\quad {\rm{(III)F}}\,\,\,\,{\rm{(IV)S}}\)
Choose the most appropriate from the options given below

1 (I) \({\mathrm{>}}\) (IV) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (III)
2 (IV) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (II)
3 (I) \({\mathrm{>}}\) (IV) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (II)
4 (III) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (IV) \({\mathrm{>}}\) (I)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313210 Assertion :
Electron gain enthalpy can be exothermic or endothermic.
Reason :
Electron gain enthalpy provides a measure of the ease with which an atom adds an electron to form anion.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313207 Which will have the maximum value of electron affinity \({{\rm{O}}^{\rm{x}}},{{\rm{O}}^{\rm{y}}},{{\rm{O}}^{\rm{z}}}\) (x, y and z respectively are \(0,-1\) and \(-\)2 ?

1 \({{\rm{O}}^{\rm{x}}}\)
2 \({{\rm{O}}^{\rm{y}}}\)
3 \({{\rm{O}}^{\rm{z}}}\)
4 All have equal
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313208 From the following given electronic configurations, identify the correct order of electron affinity
\({\text{(I) [He]}}\,{\text{2}}{{\text{s}}^{\text{2}}}{\text{2}}{{\text{p}}^{\text{5}}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\text{(II)}}\,\,{\text{[He]}}\,{\text{2}}{{\text{s}}^{\text{2}}}{\text{2}}{{\text{p}}^{\text{3}}}\)
\(({\text{III)}}\,{\text{[Ne]}}\,{\text{3}}{{\text{s}}^{\text{2}}}{\text{3}}{{\text{p}}^{\text{5}}}\,\,\,\,\,\,\,\,\,\,\,{\text{(IV) [Ne]}}\,{\text{3}}{{\text{s}}^{\text{2}}}{\text{3}}{{\text{p}}^{\text{3}}}\)

1 I \(>\) II \(>\) III \(>\) IV
2 III \(>\) I \(>\) IV \(>\) II
3 I \( < \) II \( < \) III \( < \) IV
4 II \(>\) III \(>\) IV \(>\) I
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313209 The correct sequence of electron gain enthalpy of the elements listed below is
\({\rm{(I)Ar}}\,\,\,{\rm{(II)Br}}\quad {\rm{(III)F}}\,\,\,\,{\rm{(IV)S}}\)
Choose the most appropriate from the options given below

1 (I) \({\mathrm{>}}\) (IV) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (III)
2 (IV) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (II)
3 (I) \({\mathrm{>}}\) (IV) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (II)
4 (III) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (IV) \({\mathrm{>}}\) (I)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313210 Assertion :
Electron gain enthalpy can be exothermic or endothermic.
Reason :
Electron gain enthalpy provides a measure of the ease with which an atom adds an electron to form anion.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313207 Which will have the maximum value of electron affinity \({{\rm{O}}^{\rm{x}}},{{\rm{O}}^{\rm{y}}},{{\rm{O}}^{\rm{z}}}\) (x, y and z respectively are \(0,-1\) and \(-\)2 ?

1 \({{\rm{O}}^{\rm{x}}}\)
2 \({{\rm{O}}^{\rm{y}}}\)
3 \({{\rm{O}}^{\rm{z}}}\)
4 All have equal
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313208 From the following given electronic configurations, identify the correct order of electron affinity
\({\text{(I) [He]}}\,{\text{2}}{{\text{s}}^{\text{2}}}{\text{2}}{{\text{p}}^{\text{5}}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,{\text{(II)}}\,\,{\text{[He]}}\,{\text{2}}{{\text{s}}^{\text{2}}}{\text{2}}{{\text{p}}^{\text{3}}}\)
\(({\text{III)}}\,{\text{[Ne]}}\,{\text{3}}{{\text{s}}^{\text{2}}}{\text{3}}{{\text{p}}^{\text{5}}}\,\,\,\,\,\,\,\,\,\,\,{\text{(IV) [Ne]}}\,{\text{3}}{{\text{s}}^{\text{2}}}{\text{3}}{{\text{p}}^{\text{3}}}\)

1 I \(>\) II \(>\) III \(>\) IV
2 III \(>\) I \(>\) IV \(>\) II
3 I \( < \) II \( < \) III \( < \) IV
4 II \(>\) III \(>\) IV \(>\) I
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313209 The correct sequence of electron gain enthalpy of the elements listed below is
\({\rm{(I)Ar}}\,\,\,{\rm{(II)Br}}\quad {\rm{(III)F}}\,\,\,\,{\rm{(IV)S}}\)
Choose the most appropriate from the options given below

1 (I) \({\mathrm{>}}\) (IV) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (III)
2 (IV) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (II)
3 (I) \({\mathrm{>}}\) (IV) \({\mathrm{>}}\) (III) \({\mathrm{>}}\) (II)
4 (III) \({\mathrm{>}}\) (II) \({\mathrm{>}}\) (IV) \({\mathrm{>}}\) (I)
CHXI03:CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

313210 Assertion :
Electron gain enthalpy can be exothermic or endothermic.
Reason :
Electron gain enthalpy provides a measure of the ease with which an atom adds an electron to form anion.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.