Introduction to Group 13 Elements
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CHXI11:THE P-BLOCK ELEMENTS

316524 Aluminium is more reactive than iron because its standard reduction potential is higher still aluminium is less easily corroded than iron because

1 It has higher reducing power and forms protective layer of \(\mathrm{Al}_{2} \mathrm{O}_{3}\).
2 It has higher reducing power and does not react with oxygen so easily.
3 Aluminium reacts with amphoteric carbon dioxide to form a self-protective layer of \(\mathrm{Al}_{2} \mathrm{O}_{3}+\mathrm{Al}_{4} \mathrm{C}_{3}\).
4 Aluminium reacts with nitrogen in air to form a protective layer of AIN.
CHXI11:THE P-BLOCK ELEMENTS

316525 Assertion :
\(\mathrm{Pb}^{4+}\) compounds are stronger oxidizing agents than \(\mathrm{Sn}^{4+}\) compounds.
Reason :
The higher oxidation states for the group 14 elements are more stable for the heavier members of the group due to inert pair effect.

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.
CHXI11:THE P-BLOCK ELEMENTS

316526 Ge(II) compounds are powerful reducing agents whereas \(\mathrm{Pb}(\mathrm{IV})\) compounds are strong oxidants. It can be due to

1 \(\mathrm{Pb}\) is more electronegative than \(\mathrm{Ge}\)
2 ionization potential of lead is less than that of Ge
3 ionic radii of \(\mathrm{Pb}^{2+}\) and \(\mathrm{Pb}^{4+}\) are larger than those of \(\mathrm{Ge}^{2+}\) and \(\mathrm{Ge}^{4+}\)
4 more pronounced inert pair effect in lead than in Ge
CHXI11:THE P-BLOCK ELEMENTS

316557 In which among the following compounds, oxidation number of nitrogen is +5 ?

1 \(\mathrm{N}_{2} \mathrm{O}\)
2 \(\mathrm{N}_{2} \mathrm{O}_{3}\)
3 \(\mathrm{NO}_{2}\)
4 \({\rm{HN}}{{\rm{O}}_{\rm{3}}}\)
MHTCET - 2019
CHXI11:THE P-BLOCK ELEMENTS

316527 The number of ions from the following that are expected to behave as oxidising agents is :
\({\rm{S}}{{\rm{n}}^{{\rm{4 + }}}}{\rm{,S}}{{\rm{n}}^{{\rm{2 + }}}}{\rm{,P}}{{\rm{b}}^{{\rm{2 + }}}}{\rm{,T}}{{\rm{l}}^{{\rm{3 + }}}}{\rm{,P}}{{\rm{b}}^{{\rm{4 + }}}}{\rm{,T}}{{\rm{l}}^{\rm{ + }}}{\rm{ }}\)

1 4
2 2
3 1
4 3
JEE Main - 2024
NEET DIGITAL LIBRARY
CHXI11:THE P-BLOCK ELEMENTS

316524 Aluminium is more reactive than iron because its standard reduction potential is higher still aluminium is less easily corroded than iron because

1 It has higher reducing power and forms protective layer of \(\mathrm{Al}_{2} \mathrm{O}_{3}\).
2 It has higher reducing power and does not react with oxygen so easily.
3 Aluminium reacts with amphoteric carbon dioxide to form a self-protective layer of \(\mathrm{Al}_{2} \mathrm{O}_{3}+\mathrm{Al}_{4} \mathrm{C}_{3}\).
4 Aluminium reacts with nitrogen in air to form a protective layer of AIN.
CHXI11:THE P-BLOCK ELEMENTS

316525 Assertion :
\(\mathrm{Pb}^{4+}\) compounds are stronger oxidizing agents than \(\mathrm{Sn}^{4+}\) compounds.
Reason :
The higher oxidation states for the group 14 elements are more stable for the heavier members of the group due to inert pair effect.

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.
CHXI11:THE P-BLOCK ELEMENTS

316526 Ge(II) compounds are powerful reducing agents whereas \(\mathrm{Pb}(\mathrm{IV})\) compounds are strong oxidants. It can be due to

1 \(\mathrm{Pb}\) is more electronegative than \(\mathrm{Ge}\)
2 ionization potential of lead is less than that of Ge
3 ionic radii of \(\mathrm{Pb}^{2+}\) and \(\mathrm{Pb}^{4+}\) are larger than those of \(\mathrm{Ge}^{2+}\) and \(\mathrm{Ge}^{4+}\)
4 more pronounced inert pair effect in lead than in Ge
CHXI11:THE P-BLOCK ELEMENTS

316557 In which among the following compounds, oxidation number of nitrogen is +5 ?

1 \(\mathrm{N}_{2} \mathrm{O}\)
2 \(\mathrm{N}_{2} \mathrm{O}_{3}\)
3 \(\mathrm{NO}_{2}\)
4 \({\rm{HN}}{{\rm{O}}_{\rm{3}}}\)
MHTCET - 2019
CHXI11:THE P-BLOCK ELEMENTS

316527 The number of ions from the following that are expected to behave as oxidising agents is :
\({\rm{S}}{{\rm{n}}^{{\rm{4 + }}}}{\rm{,S}}{{\rm{n}}^{{\rm{2 + }}}}{\rm{,P}}{{\rm{b}}^{{\rm{2 + }}}}{\rm{,T}}{{\rm{l}}^{{\rm{3 + }}}}{\rm{,P}}{{\rm{b}}^{{\rm{4 + }}}}{\rm{,T}}{{\rm{l}}^{\rm{ + }}}{\rm{ }}\)

1 4
2 2
3 1
4 3
JEE Main - 2024
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CHXI11:THE P-BLOCK ELEMENTS

316524 Aluminium is more reactive than iron because its standard reduction potential is higher still aluminium is less easily corroded than iron because

1 It has higher reducing power and forms protective layer of \(\mathrm{Al}_{2} \mathrm{O}_{3}\).
2 It has higher reducing power and does not react with oxygen so easily.
3 Aluminium reacts with amphoteric carbon dioxide to form a self-protective layer of \(\mathrm{Al}_{2} \mathrm{O}_{3}+\mathrm{Al}_{4} \mathrm{C}_{3}\).
4 Aluminium reacts with nitrogen in air to form a protective layer of AIN.
CHXI11:THE P-BLOCK ELEMENTS

316525 Assertion :
\(\mathrm{Pb}^{4+}\) compounds are stronger oxidizing agents than \(\mathrm{Sn}^{4+}\) compounds.
Reason :
The higher oxidation states for the group 14 elements are more stable for the heavier members of the group due to inert pair effect.

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.
CHXI11:THE P-BLOCK ELEMENTS

316526 Ge(II) compounds are powerful reducing agents whereas \(\mathrm{Pb}(\mathrm{IV})\) compounds are strong oxidants. It can be due to

1 \(\mathrm{Pb}\) is more electronegative than \(\mathrm{Ge}\)
2 ionization potential of lead is less than that of Ge
3 ionic radii of \(\mathrm{Pb}^{2+}\) and \(\mathrm{Pb}^{4+}\) are larger than those of \(\mathrm{Ge}^{2+}\) and \(\mathrm{Ge}^{4+}\)
4 more pronounced inert pair effect in lead than in Ge
CHXI11:THE P-BLOCK ELEMENTS

316557 In which among the following compounds, oxidation number of nitrogen is +5 ?

1 \(\mathrm{N}_{2} \mathrm{O}\)
2 \(\mathrm{N}_{2} \mathrm{O}_{3}\)
3 \(\mathrm{NO}_{2}\)
4 \({\rm{HN}}{{\rm{O}}_{\rm{3}}}\)
MHTCET - 2019
CHXI11:THE P-BLOCK ELEMENTS

316527 The number of ions from the following that are expected to behave as oxidising agents is :
\({\rm{S}}{{\rm{n}}^{{\rm{4 + }}}}{\rm{,S}}{{\rm{n}}^{{\rm{2 + }}}}{\rm{,P}}{{\rm{b}}^{{\rm{2 + }}}}{\rm{,T}}{{\rm{l}}^{{\rm{3 + }}}}{\rm{,P}}{{\rm{b}}^{{\rm{4 + }}}}{\rm{,T}}{{\rm{l}}^{\rm{ + }}}{\rm{ }}\)

1 4
2 2
3 1
4 3
JEE Main - 2024
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CHXI11:THE P-BLOCK ELEMENTS

316524 Aluminium is more reactive than iron because its standard reduction potential is higher still aluminium is less easily corroded than iron because

1 It has higher reducing power and forms protective layer of \(\mathrm{Al}_{2} \mathrm{O}_{3}\).
2 It has higher reducing power and does not react with oxygen so easily.
3 Aluminium reacts with amphoteric carbon dioxide to form a self-protective layer of \(\mathrm{Al}_{2} \mathrm{O}_{3}+\mathrm{Al}_{4} \mathrm{C}_{3}\).
4 Aluminium reacts with nitrogen in air to form a protective layer of AIN.
CHXI11:THE P-BLOCK ELEMENTS

316525 Assertion :
\(\mathrm{Pb}^{4+}\) compounds are stronger oxidizing agents than \(\mathrm{Sn}^{4+}\) compounds.
Reason :
The higher oxidation states for the group 14 elements are more stable for the heavier members of the group due to inert pair effect.

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.
CHXI11:THE P-BLOCK ELEMENTS

316526 Ge(II) compounds are powerful reducing agents whereas \(\mathrm{Pb}(\mathrm{IV})\) compounds are strong oxidants. It can be due to

1 \(\mathrm{Pb}\) is more electronegative than \(\mathrm{Ge}\)
2 ionization potential of lead is less than that of Ge
3 ionic radii of \(\mathrm{Pb}^{2+}\) and \(\mathrm{Pb}^{4+}\) are larger than those of \(\mathrm{Ge}^{2+}\) and \(\mathrm{Ge}^{4+}\)
4 more pronounced inert pair effect in lead than in Ge
CHXI11:THE P-BLOCK ELEMENTS

316557 In which among the following compounds, oxidation number of nitrogen is +5 ?

1 \(\mathrm{N}_{2} \mathrm{O}\)
2 \(\mathrm{N}_{2} \mathrm{O}_{3}\)
3 \(\mathrm{NO}_{2}\)
4 \({\rm{HN}}{{\rm{O}}_{\rm{3}}}\)
MHTCET - 2019
CHXI11:THE P-BLOCK ELEMENTS

316527 The number of ions from the following that are expected to behave as oxidising agents is :
\({\rm{S}}{{\rm{n}}^{{\rm{4 + }}}}{\rm{,S}}{{\rm{n}}^{{\rm{2 + }}}}{\rm{,P}}{{\rm{b}}^{{\rm{2 + }}}}{\rm{,T}}{{\rm{l}}^{{\rm{3 + }}}}{\rm{,P}}{{\rm{b}}^{{\rm{4 + }}}}{\rm{,T}}{{\rm{l}}^{\rm{ + }}}{\rm{ }}\)

1 4
2 2
3 1
4 3
JEE Main - 2024
NEET DIGITAL LIBRARY
CHXI11:THE P-BLOCK ELEMENTS

316524 Aluminium is more reactive than iron because its standard reduction potential is higher still aluminium is less easily corroded than iron because

1 It has higher reducing power and forms protective layer of \(\mathrm{Al}_{2} \mathrm{O}_{3}\).
2 It has higher reducing power and does not react with oxygen so easily.
3 Aluminium reacts with amphoteric carbon dioxide to form a self-protective layer of \(\mathrm{Al}_{2} \mathrm{O}_{3}+\mathrm{Al}_{4} \mathrm{C}_{3}\).
4 Aluminium reacts with nitrogen in air to form a protective layer of AIN.
CHXI11:THE P-BLOCK ELEMENTS

316525 Assertion :
\(\mathrm{Pb}^{4+}\) compounds are stronger oxidizing agents than \(\mathrm{Sn}^{4+}\) compounds.
Reason :
The higher oxidation states for the group 14 elements are more stable for the heavier members of the group due to inert pair effect.

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.
CHXI11:THE P-BLOCK ELEMENTS

316526 Ge(II) compounds are powerful reducing agents whereas \(\mathrm{Pb}(\mathrm{IV})\) compounds are strong oxidants. It can be due to

1 \(\mathrm{Pb}\) is more electronegative than \(\mathrm{Ge}\)
2 ionization potential of lead is less than that of Ge
3 ionic radii of \(\mathrm{Pb}^{2+}\) and \(\mathrm{Pb}^{4+}\) are larger than those of \(\mathrm{Ge}^{2+}\) and \(\mathrm{Ge}^{4+}\)
4 more pronounced inert pair effect in lead than in Ge
CHXI11:THE P-BLOCK ELEMENTS

316557 In which among the following compounds, oxidation number of nitrogen is +5 ?

1 \(\mathrm{N}_{2} \mathrm{O}\)
2 \(\mathrm{N}_{2} \mathrm{O}_{3}\)
3 \(\mathrm{NO}_{2}\)
4 \({\rm{HN}}{{\rm{O}}_{\rm{3}}}\)
MHTCET - 2019
CHXI11:THE P-BLOCK ELEMENTS

316527 The number of ions from the following that are expected to behave as oxidising agents is :
\({\rm{S}}{{\rm{n}}^{{\rm{4 + }}}}{\rm{,S}}{{\rm{n}}^{{\rm{2 + }}}}{\rm{,P}}{{\rm{b}}^{{\rm{2 + }}}}{\rm{,T}}{{\rm{l}}^{{\rm{3 + }}}}{\rm{,P}}{{\rm{b}}^{{\rm{4 + }}}}{\rm{,T}}{{\rm{l}}^{\rm{ + }}}{\rm{ }}\)

1 4
2 2
3 1
4 3
JEE Main - 2024