General characteristics of the transition elements
CHXII08:THE D- & F-BLOCK ELEMENTS

321538 The stability of ferric ion is due to:

1 Half-filled f-orbitals
2 Half-filled d-orbitals
3 Completely filled f-orbitals
4 Completely filled d-orbitals
CHXII08:THE D- & F-BLOCK ELEMENTS

321539 What is the oxidation states of Cr in butterfly structure.

1 2
2 4
3 \( - 1\)
4 6
CHXII08:THE D- & F-BLOCK ELEMENTS

321540 The correct order of basicity of oxides of Vanadium is

1 \(\mathrm{V}_{2} \mathrm{O}_{4}>\mathrm{V}_{2} \mathrm{O}_{3}>\mathrm{V}_{2} \mathrm{O}_{5}\)
2 \(\mathrm{V}_{2} \mathrm{O}_{3}>\mathrm{V}_{2} \mathrm{O}_{5}>\mathrm{V}_{2} \mathrm{O}_{4}\)
3 \(\mathrm{V}_{2} \mathrm{O}_{3}>\mathrm{V}_{2} \mathrm{O}_{4}>\mathrm{V}_{2} \mathrm{O}_{5}\)
4 \(\mathrm{V}_{2} \mathrm{O}_{5}>\mathrm{V}_{2} \mathrm{O}_{4}>\mathrm{V}_{2} \mathrm{O}_{3}\)
CHXII08:THE D- & F-BLOCK ELEMENTS

321541 The pair of compounds having metals in their highest oxidation state is :

1 \(\mathrm{\mathrm{MnO}_{2}}\) and \(\mathrm{\mathrm{CrO}_{2} \mathrm{Cl}_{2}}\)
2 \(\mathrm{\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}}\) and \(\mathrm{\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]^{2-}}\)
3 \(\mathrm{\left[\mathrm{NiCl}_{4}\right]^{2-}}\) and \(\mathrm{\left[\mathrm{CoCl}_{4}\right]^{2-}}\)
4 \(\mathrm{\left[\mathrm{FeCl}_{4}\right]}\) and \(\mathrm{\mathrm{Co}_{2} \mathrm{O}_{3}}\)
CHXII08:THE D- & F-BLOCK ELEMENTS

321542 Read the Statement - A and Statement - B carefully to mark the correct options given below
Statement A :
The higher oxidation states are more stable down the group among transition elements unlike
p -block elements.
Statement B :
Copper cannot liberate hydrogen from weak acids.

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.
CHXII08:THE D- & F-BLOCK ELEMENTS

321538 The stability of ferric ion is due to:

1 Half-filled f-orbitals
2 Half-filled d-orbitals
3 Completely filled f-orbitals
4 Completely filled d-orbitals
CHXII08:THE D- & F-BLOCK ELEMENTS

321539 What is the oxidation states of Cr in butterfly structure.

1 2
2 4
3 \( - 1\)
4 6
CHXII08:THE D- & F-BLOCK ELEMENTS

321540 The correct order of basicity of oxides of Vanadium is

1 \(\mathrm{V}_{2} \mathrm{O}_{4}>\mathrm{V}_{2} \mathrm{O}_{3}>\mathrm{V}_{2} \mathrm{O}_{5}\)
2 \(\mathrm{V}_{2} \mathrm{O}_{3}>\mathrm{V}_{2} \mathrm{O}_{5}>\mathrm{V}_{2} \mathrm{O}_{4}\)
3 \(\mathrm{V}_{2} \mathrm{O}_{3}>\mathrm{V}_{2} \mathrm{O}_{4}>\mathrm{V}_{2} \mathrm{O}_{5}\)
4 \(\mathrm{V}_{2} \mathrm{O}_{5}>\mathrm{V}_{2} \mathrm{O}_{4}>\mathrm{V}_{2} \mathrm{O}_{3}\)
CHXII08:THE D- & F-BLOCK ELEMENTS

321541 The pair of compounds having metals in their highest oxidation state is :

1 \(\mathrm{\mathrm{MnO}_{2}}\) and \(\mathrm{\mathrm{CrO}_{2} \mathrm{Cl}_{2}}\)
2 \(\mathrm{\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}}\) and \(\mathrm{\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]^{2-}}\)
3 \(\mathrm{\left[\mathrm{NiCl}_{4}\right]^{2-}}\) and \(\mathrm{\left[\mathrm{CoCl}_{4}\right]^{2-}}\)
4 \(\mathrm{\left[\mathrm{FeCl}_{4}\right]}\) and \(\mathrm{\mathrm{Co}_{2} \mathrm{O}_{3}}\)
CHXII08:THE D- & F-BLOCK ELEMENTS

321542 Read the Statement - A and Statement - B carefully to mark the correct options given below
Statement A :
The higher oxidation states are more stable down the group among transition elements unlike
p -block elements.
Statement B :
Copper cannot liberate hydrogen from weak acids.

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.
CHXII08:THE D- & F-BLOCK ELEMENTS

321538 The stability of ferric ion is due to:

1 Half-filled f-orbitals
2 Half-filled d-orbitals
3 Completely filled f-orbitals
4 Completely filled d-orbitals
CHXII08:THE D- & F-BLOCK ELEMENTS

321539 What is the oxidation states of Cr in butterfly structure.

1 2
2 4
3 \( - 1\)
4 6
CHXII08:THE D- & F-BLOCK ELEMENTS

321540 The correct order of basicity of oxides of Vanadium is

1 \(\mathrm{V}_{2} \mathrm{O}_{4}>\mathrm{V}_{2} \mathrm{O}_{3}>\mathrm{V}_{2} \mathrm{O}_{5}\)
2 \(\mathrm{V}_{2} \mathrm{O}_{3}>\mathrm{V}_{2} \mathrm{O}_{5}>\mathrm{V}_{2} \mathrm{O}_{4}\)
3 \(\mathrm{V}_{2} \mathrm{O}_{3}>\mathrm{V}_{2} \mathrm{O}_{4}>\mathrm{V}_{2} \mathrm{O}_{5}\)
4 \(\mathrm{V}_{2} \mathrm{O}_{5}>\mathrm{V}_{2} \mathrm{O}_{4}>\mathrm{V}_{2} \mathrm{O}_{3}\)
CHXII08:THE D- & F-BLOCK ELEMENTS

321541 The pair of compounds having metals in their highest oxidation state is :

1 \(\mathrm{\mathrm{MnO}_{2}}\) and \(\mathrm{\mathrm{CrO}_{2} \mathrm{Cl}_{2}}\)
2 \(\mathrm{\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}}\) and \(\mathrm{\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]^{2-}}\)
3 \(\mathrm{\left[\mathrm{NiCl}_{4}\right]^{2-}}\) and \(\mathrm{\left[\mathrm{CoCl}_{4}\right]^{2-}}\)
4 \(\mathrm{\left[\mathrm{FeCl}_{4}\right]}\) and \(\mathrm{\mathrm{Co}_{2} \mathrm{O}_{3}}\)
CHXII08:THE D- & F-BLOCK ELEMENTS

321542 Read the Statement - A and Statement - B carefully to mark the correct options given below
Statement A :
The higher oxidation states are more stable down the group among transition elements unlike
p -block elements.
Statement B :
Copper cannot liberate hydrogen from weak acids.

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.
CHXII08:THE D- & F-BLOCK ELEMENTS

321538 The stability of ferric ion is due to:

1 Half-filled f-orbitals
2 Half-filled d-orbitals
3 Completely filled f-orbitals
4 Completely filled d-orbitals
CHXII08:THE D- & F-BLOCK ELEMENTS

321539 What is the oxidation states of Cr in butterfly structure.

1 2
2 4
3 \( - 1\)
4 6
CHXII08:THE D- & F-BLOCK ELEMENTS

321540 The correct order of basicity of oxides of Vanadium is

1 \(\mathrm{V}_{2} \mathrm{O}_{4}>\mathrm{V}_{2} \mathrm{O}_{3}>\mathrm{V}_{2} \mathrm{O}_{5}\)
2 \(\mathrm{V}_{2} \mathrm{O}_{3}>\mathrm{V}_{2} \mathrm{O}_{5}>\mathrm{V}_{2} \mathrm{O}_{4}\)
3 \(\mathrm{V}_{2} \mathrm{O}_{3}>\mathrm{V}_{2} \mathrm{O}_{4}>\mathrm{V}_{2} \mathrm{O}_{5}\)
4 \(\mathrm{V}_{2} \mathrm{O}_{5}>\mathrm{V}_{2} \mathrm{O}_{4}>\mathrm{V}_{2} \mathrm{O}_{3}\)
CHXII08:THE D- & F-BLOCK ELEMENTS

321541 The pair of compounds having metals in their highest oxidation state is :

1 \(\mathrm{\mathrm{MnO}_{2}}\) and \(\mathrm{\mathrm{CrO}_{2} \mathrm{Cl}_{2}}\)
2 \(\mathrm{\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}}\) and \(\mathrm{\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]^{2-}}\)
3 \(\mathrm{\left[\mathrm{NiCl}_{4}\right]^{2-}}\) and \(\mathrm{\left[\mathrm{CoCl}_{4}\right]^{2-}}\)
4 \(\mathrm{\left[\mathrm{FeCl}_{4}\right]}\) and \(\mathrm{\mathrm{Co}_{2} \mathrm{O}_{3}}\)
CHXII08:THE D- & F-BLOCK ELEMENTS

321542 Read the Statement - A and Statement - B carefully to mark the correct options given below
Statement A :
The higher oxidation states are more stable down the group among transition elements unlike
p -block elements.
Statement B :
Copper cannot liberate hydrogen from weak acids.

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.
CHXII08:THE D- & F-BLOCK ELEMENTS

321538 The stability of ferric ion is due to:

1 Half-filled f-orbitals
2 Half-filled d-orbitals
3 Completely filled f-orbitals
4 Completely filled d-orbitals
CHXII08:THE D- & F-BLOCK ELEMENTS

321539 What is the oxidation states of Cr in butterfly structure.

1 2
2 4
3 \( - 1\)
4 6
CHXII08:THE D- & F-BLOCK ELEMENTS

321540 The correct order of basicity of oxides of Vanadium is

1 \(\mathrm{V}_{2} \mathrm{O}_{4}>\mathrm{V}_{2} \mathrm{O}_{3}>\mathrm{V}_{2} \mathrm{O}_{5}\)
2 \(\mathrm{V}_{2} \mathrm{O}_{3}>\mathrm{V}_{2} \mathrm{O}_{5}>\mathrm{V}_{2} \mathrm{O}_{4}\)
3 \(\mathrm{V}_{2} \mathrm{O}_{3}>\mathrm{V}_{2} \mathrm{O}_{4}>\mathrm{V}_{2} \mathrm{O}_{5}\)
4 \(\mathrm{V}_{2} \mathrm{O}_{5}>\mathrm{V}_{2} \mathrm{O}_{4}>\mathrm{V}_{2} \mathrm{O}_{3}\)
CHXII08:THE D- & F-BLOCK ELEMENTS

321541 The pair of compounds having metals in their highest oxidation state is :

1 \(\mathrm{\mathrm{MnO}_{2}}\) and \(\mathrm{\mathrm{CrO}_{2} \mathrm{Cl}_{2}}\)
2 \(\mathrm{\left[\mathrm{Fe}(\mathrm{CN})_{6}\right]^{3-}}\) and \(\mathrm{\left[\mathrm{Cu}(\mathrm{CN})_{4}\right]^{2-}}\)
3 \(\mathrm{\left[\mathrm{NiCl}_{4}\right]^{2-}}\) and \(\mathrm{\left[\mathrm{CoCl}_{4}\right]^{2-}}\)
4 \(\mathrm{\left[\mathrm{FeCl}_{4}\right]}\) and \(\mathrm{\mathrm{Co}_{2} \mathrm{O}_{3}}\)
CHXII08:THE D- & F-BLOCK ELEMENTS

321542 Read the Statement - A and Statement - B carefully to mark the correct options given below
Statement A :
The higher oxidation states are more stable down the group among transition elements unlike
p -block elements.
Statement B :
Copper cannot liberate hydrogen from weak acids.

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.