General characteristics of the transition elements
« Previous Topic: Compounds of transition elements Next Topic: Introduction to the f-block elements »
CHXII08:THE D- & F-BLOCK ELEMENTS

321551 \(\mathrm{\mathrm{Mn}^{2+}}\) compounds are more stable than \(\mathrm{\mathrm{Fe}^{2+}}\) compounds towards oxidation to their +3 state, because

1 \(\mathrm{\mathrm{Mn}^{2+}}\) is more stable with high \(\mathrm{3^{\text {rd }}}\) ionisation energy
2 \(\mathrm{\mathrm{Mn}^{2+}}\) is bigger in size
3 \(\mathrm{\mathrm{Mn}^{2+}}\) has completely filled d-orbitals
4 \(\mathrm{\mathrm{Mn}^{2+}}\) does not exist.
KCET - 2016
CHXII08:THE D- & F-BLOCK ELEMENTS

321552 Strong reducing and oxidizing agents among the following, respectively are

1 \(\mathrm{Ce}^{4+}\) and \(\mathrm{Eu}^{2+}\)
2 \(\mathrm{Eu}^{2+}\) and \(\mathrm{Ce}^{4+}\)
3 \(\mathrm{Ce}^{4+}\) and \(\mathrm{Tb}^{4+}\)
4 \(\mathrm{Ce}^{3+}\) and \(\mathrm{Ce}^{4+}\)
JEE - 2023
CHXII08:THE D- & F-BLOCK ELEMENTS

321553 Although fluorine is more electronegative than oxygen, but the ability of oxygen to stabilise higher oxidation states exceeds that of fluorine because

1 Fluorine has the highest oxidising power
2 Oxygen has lower oxidising power
3 Ability of oxygen to form multiple bonds to metals
4 All the above
CHXII08:THE D- & F-BLOCK ELEMENTS

321554 Which of the following statements is wrong?

1 In highest oxidation states, the transition metals show acidic character.
2 \(\mathrm{\mathrm{Mn}^{3+}}\) and \(\mathrm{\mathrm{Co}^{3+}}\) are oxidising agents in aqueous solution.
3 Metals in highest oxidation states are more stable in oxides than in fluorides.
4 All elements of \({\rm{3d}}\) series exhibit variable oxidation states.
KCET - 2019
CHXII08:THE D- & F-BLOCK ELEMENTS

321555 Sum of highest stable oxidation states of following elements is:
\(\mathrm{\mathrm{Sc}, \mathrm{Zn}, \mathrm{Ti}, \mathrm{Mn}, \mathrm{Cr}}\)

1 20
2 12
3 15
4 22
Join With Us for More Updates
CHXII08:THE D- & F-BLOCK ELEMENTS

321551 \(\mathrm{\mathrm{Mn}^{2+}}\) compounds are more stable than \(\mathrm{\mathrm{Fe}^{2+}}\) compounds towards oxidation to their +3 state, because

1 \(\mathrm{\mathrm{Mn}^{2+}}\) is more stable with high \(\mathrm{3^{\text {rd }}}\) ionisation energy
2 \(\mathrm{\mathrm{Mn}^{2+}}\) is bigger in size
3 \(\mathrm{\mathrm{Mn}^{2+}}\) has completely filled d-orbitals
4 \(\mathrm{\mathrm{Mn}^{2+}}\) does not exist.
KCET - 2016
CHXII08:THE D- & F-BLOCK ELEMENTS

321552 Strong reducing and oxidizing agents among the following, respectively are

1 \(\mathrm{Ce}^{4+}\) and \(\mathrm{Eu}^{2+}\)
2 \(\mathrm{Eu}^{2+}\) and \(\mathrm{Ce}^{4+}\)
3 \(\mathrm{Ce}^{4+}\) and \(\mathrm{Tb}^{4+}\)
4 \(\mathrm{Ce}^{3+}\) and \(\mathrm{Ce}^{4+}\)
JEE - 2023
CHXII08:THE D- & F-BLOCK ELEMENTS

321553 Although fluorine is more electronegative than oxygen, but the ability of oxygen to stabilise higher oxidation states exceeds that of fluorine because

1 Fluorine has the highest oxidising power
2 Oxygen has lower oxidising power
3 Ability of oxygen to form multiple bonds to metals
4 All the above
CHXII08:THE D- & F-BLOCK ELEMENTS

321554 Which of the following statements is wrong?

1 In highest oxidation states, the transition metals show acidic character.
2 \(\mathrm{\mathrm{Mn}^{3+}}\) and \(\mathrm{\mathrm{Co}^{3+}}\) are oxidising agents in aqueous solution.
3 Metals in highest oxidation states are more stable in oxides than in fluorides.
4 All elements of \({\rm{3d}}\) series exhibit variable oxidation states.
KCET - 2019
CHXII08:THE D- & F-BLOCK ELEMENTS

321555 Sum of highest stable oxidation states of following elements is:
\(\mathrm{\mathrm{Sc}, \mathrm{Zn}, \mathrm{Ti}, \mathrm{Mn}, \mathrm{Cr}}\)

1 20
2 12
3 15
4 22
For More Updates join with Us
CHXII08:THE D- & F-BLOCK ELEMENTS

321551 \(\mathrm{\mathrm{Mn}^{2+}}\) compounds are more stable than \(\mathrm{\mathrm{Fe}^{2+}}\) compounds towards oxidation to their +3 state, because

1 \(\mathrm{\mathrm{Mn}^{2+}}\) is more stable with high \(\mathrm{3^{\text {rd }}}\) ionisation energy
2 \(\mathrm{\mathrm{Mn}^{2+}}\) is bigger in size
3 \(\mathrm{\mathrm{Mn}^{2+}}\) has completely filled d-orbitals
4 \(\mathrm{\mathrm{Mn}^{2+}}\) does not exist.
KCET - 2016
CHXII08:THE D- & F-BLOCK ELEMENTS

321552 Strong reducing and oxidizing agents among the following, respectively are

1 \(\mathrm{Ce}^{4+}\) and \(\mathrm{Eu}^{2+}\)
2 \(\mathrm{Eu}^{2+}\) and \(\mathrm{Ce}^{4+}\)
3 \(\mathrm{Ce}^{4+}\) and \(\mathrm{Tb}^{4+}\)
4 \(\mathrm{Ce}^{3+}\) and \(\mathrm{Ce}^{4+}\)
JEE - 2023
CHXII08:THE D- & F-BLOCK ELEMENTS

321553 Although fluorine is more electronegative than oxygen, but the ability of oxygen to stabilise higher oxidation states exceeds that of fluorine because

1 Fluorine has the highest oxidising power
2 Oxygen has lower oxidising power
3 Ability of oxygen to form multiple bonds to metals
4 All the above
CHXII08:THE D- & F-BLOCK ELEMENTS

321554 Which of the following statements is wrong?

1 In highest oxidation states, the transition metals show acidic character.
2 \(\mathrm{\mathrm{Mn}^{3+}}\) and \(\mathrm{\mathrm{Co}^{3+}}\) are oxidising agents in aqueous solution.
3 Metals in highest oxidation states are more stable in oxides than in fluorides.
4 All elements of \({\rm{3d}}\) series exhibit variable oxidation states.
KCET - 2019
CHXII08:THE D- & F-BLOCK ELEMENTS

321555 Sum of highest stable oxidation states of following elements is:
\(\mathrm{\mathrm{Sc}, \mathrm{Zn}, \mathrm{Ti}, \mathrm{Mn}, \mathrm{Cr}}\)

1 20
2 12
3 15
4 22
NEET DIGITAL LIBRARY
CHXII08:THE D- & F-BLOCK ELEMENTS

321551 \(\mathrm{\mathrm{Mn}^{2+}}\) compounds are more stable than \(\mathrm{\mathrm{Fe}^{2+}}\) compounds towards oxidation to their +3 state, because

1 \(\mathrm{\mathrm{Mn}^{2+}}\) is more stable with high \(\mathrm{3^{\text {rd }}}\) ionisation energy
2 \(\mathrm{\mathrm{Mn}^{2+}}\) is bigger in size
3 \(\mathrm{\mathrm{Mn}^{2+}}\) has completely filled d-orbitals
4 \(\mathrm{\mathrm{Mn}^{2+}}\) does not exist.
KCET - 2016
CHXII08:THE D- & F-BLOCK ELEMENTS

321552 Strong reducing and oxidizing agents among the following, respectively are

1 \(\mathrm{Ce}^{4+}\) and \(\mathrm{Eu}^{2+}\)
2 \(\mathrm{Eu}^{2+}\) and \(\mathrm{Ce}^{4+}\)
3 \(\mathrm{Ce}^{4+}\) and \(\mathrm{Tb}^{4+}\)
4 \(\mathrm{Ce}^{3+}\) and \(\mathrm{Ce}^{4+}\)
JEE - 2023
CHXII08:THE D- & F-BLOCK ELEMENTS

321553 Although fluorine is more electronegative than oxygen, but the ability of oxygen to stabilise higher oxidation states exceeds that of fluorine because

1 Fluorine has the highest oxidising power
2 Oxygen has lower oxidising power
3 Ability of oxygen to form multiple bonds to metals
4 All the above
CHXII08:THE D- & F-BLOCK ELEMENTS

321554 Which of the following statements is wrong?

1 In highest oxidation states, the transition metals show acidic character.
2 \(\mathrm{\mathrm{Mn}^{3+}}\) and \(\mathrm{\mathrm{Co}^{3+}}\) are oxidising agents in aqueous solution.
3 Metals in highest oxidation states are more stable in oxides than in fluorides.
4 All elements of \({\rm{3d}}\) series exhibit variable oxidation states.
KCET - 2019
CHXII08:THE D- & F-BLOCK ELEMENTS

321555 Sum of highest stable oxidation states of following elements is:
\(\mathrm{\mathrm{Sc}, \mathrm{Zn}, \mathrm{Ti}, \mathrm{Mn}, \mathrm{Cr}}\)

1 20
2 12
3 15
4 22
Join With Us for More Updates
CHXII08:THE D- & F-BLOCK ELEMENTS

321551 \(\mathrm{\mathrm{Mn}^{2+}}\) compounds are more stable than \(\mathrm{\mathrm{Fe}^{2+}}\) compounds towards oxidation to their +3 state, because

1 \(\mathrm{\mathrm{Mn}^{2+}}\) is more stable with high \(\mathrm{3^{\text {rd }}}\) ionisation energy
2 \(\mathrm{\mathrm{Mn}^{2+}}\) is bigger in size
3 \(\mathrm{\mathrm{Mn}^{2+}}\) has completely filled d-orbitals
4 \(\mathrm{\mathrm{Mn}^{2+}}\) does not exist.
KCET - 2016
CHXII08:THE D- & F-BLOCK ELEMENTS

321552 Strong reducing and oxidizing agents among the following, respectively are

1 \(\mathrm{Ce}^{4+}\) and \(\mathrm{Eu}^{2+}\)
2 \(\mathrm{Eu}^{2+}\) and \(\mathrm{Ce}^{4+}\)
3 \(\mathrm{Ce}^{4+}\) and \(\mathrm{Tb}^{4+}\)
4 \(\mathrm{Ce}^{3+}\) and \(\mathrm{Ce}^{4+}\)
JEE - 2023
CHXII08:THE D- & F-BLOCK ELEMENTS

321553 Although fluorine is more electronegative than oxygen, but the ability of oxygen to stabilise higher oxidation states exceeds that of fluorine because

1 Fluorine has the highest oxidising power
2 Oxygen has lower oxidising power
3 Ability of oxygen to form multiple bonds to metals
4 All the above
CHXII08:THE D- & F-BLOCK ELEMENTS

321554 Which of the following statements is wrong?

1 In highest oxidation states, the transition metals show acidic character.
2 \(\mathrm{\mathrm{Mn}^{3+}}\) and \(\mathrm{\mathrm{Co}^{3+}}\) are oxidising agents in aqueous solution.
3 Metals in highest oxidation states are more stable in oxides than in fluorides.
4 All elements of \({\rm{3d}}\) series exhibit variable oxidation states.
KCET - 2019
CHXII08:THE D- & F-BLOCK ELEMENTS

321555 Sum of highest stable oxidation states of following elements is:
\(\mathrm{\mathrm{Sc}, \mathrm{Zn}, \mathrm{Ti}, \mathrm{Mn}, \mathrm{Cr}}\)

1 20
2 12
3 15
4 22