The lanthanoids
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CHXII08:THE D- & F-BLOCK ELEMENTS

321743 Read the Statement - A and Statement - B carefully to mark the correct options given below
Statement A :
In the Lanthanoids, the formation of \({\mathrm{\mathrm{Ce}^{+4}}}\) is favoured by its noble gas configuration.
Statement B :
\({\mathrm{\mathrm{Ce}^{+4}}}\) is a strong oxidant reverting to the common +3 state.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
JEE Main - 2024
CHXII08:THE D- & F-BLOCK ELEMENTS

321744 Which among the following lanthanoids forms most stable +2 oxidation state?

1 \({\text{Eu(Z = 63)}}\)
2 \({\text{Pm(Z = 61)}}\)
3 \({\text{Ce(Z = 58)}}\)
4 \({\text{Gd(Z = 64)}}\)
MHTCET - 2021
CHXII08:THE D- & F-BLOCK ELEMENTS

321745 What is the number of unpaired electrons present in f-orbital at +3 oxidation state of \(\mathrm{Lu}(\mathrm{Z}=71)\) ?

1 7
2 2
3 4
4 0
MHTCET - 2021
CHXII08:THE D- & F-BLOCK ELEMENTS

321746 Which of the following Lanthanoid ion is more stable in +2 oxidation state in aqueous solution?

1 \(\mathrm{\mathrm{Eu}^{2+}}\)
2 \(\mathrm{\mathrm{Ce}^{2+}}\)
3 \(\mathrm{\mathrm{Lu}^{3+}}\)
4 \(\mathrm{\mathrm{Fe}^{2+}}\)
For More Updates join with Us
CHXII08:THE D- & F-BLOCK ELEMENTS

321743 Read the Statement - A and Statement - B carefully to mark the correct options given below
Statement A :
In the Lanthanoids, the formation of \({\mathrm{\mathrm{Ce}^{+4}}}\) is favoured by its noble gas configuration.
Statement B :
\({\mathrm{\mathrm{Ce}^{+4}}}\) is a strong oxidant reverting to the common +3 state.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
JEE Main - 2024
CHXII08:THE D- & F-BLOCK ELEMENTS

321744 Which among the following lanthanoids forms most stable +2 oxidation state?

1 \({\text{Eu(Z = 63)}}\)
2 \({\text{Pm(Z = 61)}}\)
3 \({\text{Ce(Z = 58)}}\)
4 \({\text{Gd(Z = 64)}}\)
MHTCET - 2021
CHXII08:THE D- & F-BLOCK ELEMENTS

321745 What is the number of unpaired electrons present in f-orbital at +3 oxidation state of \(\mathrm{Lu}(\mathrm{Z}=71)\) ?

1 7
2 2
3 4
4 0
MHTCET - 2021
CHXII08:THE D- & F-BLOCK ELEMENTS

321746 Which of the following Lanthanoid ion is more stable in +2 oxidation state in aqueous solution?

1 \(\mathrm{\mathrm{Eu}^{2+}}\)
2 \(\mathrm{\mathrm{Ce}^{2+}}\)
3 \(\mathrm{\mathrm{Lu}^{3+}}\)
4 \(\mathrm{\mathrm{Fe}^{2+}}\)
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CHXII08:THE D- & F-BLOCK ELEMENTS

321743 Read the Statement - A and Statement - B carefully to mark the correct options given below
Statement A :
In the Lanthanoids, the formation of \({\mathrm{\mathrm{Ce}^{+4}}}\) is favoured by its noble gas configuration.
Statement B :
\({\mathrm{\mathrm{Ce}^{+4}}}\) is a strong oxidant reverting to the common +3 state.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
JEE Main - 2024
CHXII08:THE D- & F-BLOCK ELEMENTS

321744 Which among the following lanthanoids forms most stable +2 oxidation state?

1 \({\text{Eu(Z = 63)}}\)
2 \({\text{Pm(Z = 61)}}\)
3 \({\text{Ce(Z = 58)}}\)
4 \({\text{Gd(Z = 64)}}\)
MHTCET - 2021
CHXII08:THE D- & F-BLOCK ELEMENTS

321745 What is the number of unpaired electrons present in f-orbital at +3 oxidation state of \(\mathrm{Lu}(\mathrm{Z}=71)\) ?

1 7
2 2
3 4
4 0
MHTCET - 2021
CHXII08:THE D- & F-BLOCK ELEMENTS

321746 Which of the following Lanthanoid ion is more stable in +2 oxidation state in aqueous solution?

1 \(\mathrm{\mathrm{Eu}^{2+}}\)
2 \(\mathrm{\mathrm{Ce}^{2+}}\)
3 \(\mathrm{\mathrm{Lu}^{3+}}\)
4 \(\mathrm{\mathrm{Fe}^{2+}}\)
Join With Us for More Updates
CHXII08:THE D- & F-BLOCK ELEMENTS

321743 Read the Statement - A and Statement - B carefully to mark the correct options given below
Statement A :
In the Lanthanoids, the formation of \({\mathrm{\mathrm{Ce}^{+4}}}\) is favoured by its noble gas configuration.
Statement B :
\({\mathrm{\mathrm{Ce}^{+4}}}\) is a strong oxidant reverting to the common +3 state.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
JEE Main - 2024
CHXII08:THE D- & F-BLOCK ELEMENTS

321744 Which among the following lanthanoids forms most stable +2 oxidation state?

1 \({\text{Eu(Z = 63)}}\)
2 \({\text{Pm(Z = 61)}}\)
3 \({\text{Ce(Z = 58)}}\)
4 \({\text{Gd(Z = 64)}}\)
MHTCET - 2021
CHXII08:THE D- & F-BLOCK ELEMENTS

321745 What is the number of unpaired electrons present in f-orbital at +3 oxidation state of \(\mathrm{Lu}(\mathrm{Z}=71)\) ?

1 7
2 2
3 4
4 0
MHTCET - 2021
CHXII08:THE D- & F-BLOCK ELEMENTS

321746 Which of the following Lanthanoid ion is more stable in +2 oxidation state in aqueous solution?

1 \(\mathrm{\mathrm{Eu}^{2+}}\)
2 \(\mathrm{\mathrm{Ce}^{2+}}\)
3 \(\mathrm{\mathrm{Lu}^{3+}}\)
4 \(\mathrm{\mathrm{Fe}^{2+}}\)
For More Updates join with Us