Periodic properties of d-block elements
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CHXII08:THE D- & F-BLOCK ELEMENTS

321583 The trend in ionisation enthalpy of a transition element is not regular because

1 Removal of one electron alters the relative energies of \(\mathrm{4 s}\) and \(\mathrm{3 d}\) orbitals
2 Due to different E.C. (stability)
3 Poor screening of \(\mathrm{3 p}\) orbital
4 Due to decrease in effective nuclear charge
CHXII08:THE D- & F-BLOCK ELEMENTS

321584 The transition metal having highest \({\mathrm{3^{\text {rd }}}}\) ionisation enthalpy is

1 Mn
2 Fe
3 Cr
4 V
JEE Main - 2024
CHXII08:THE D- & F-BLOCK ELEMENTS

321585 Which element of the first transition series has highest third ionisation enthalpy?

1 \(\mathrm{\mathrm{Sc}}\)
2 \(\mathrm{\mathrm{Fe}}\)
3 \({\rm{Co}}\)
4 \(\mathrm{\mathrm{Zn}}\)
CHXII08:THE D- & F-BLOCK ELEMENTS

321586 Match the column I with column II and mark the appropriate choice.
Column I
Column II
A
Element with highest second ionisation enthalpy
P
Cr
B
Element with highest third ionisation enthalpy
Q
Cu
C
M in \(\left[ {{\rm{M}}{{\left( {{\rm{CO}}} \right)}_{\rm{6}}}} \right]\) is
R
Zn
D
Element with highest heat of atomisation
S
V

1 A - Q, B - R, C - P, D - S
2 A - S, B - R, C - P, D - Q
3 A - R, B - P, C - Q, D - S
4 A - P, B - Q, C - R, D - S
CHXII08:THE D- & F-BLOCK ELEMENTS

321587 The IP of \(\mathrm{\mathrm{Zr}}\) is \(\mathrm{674 \mathrm{~kJ} / \mathrm{mole}}\). The IP of Hf is

1 \(\mathrm{658 \mathrm{~kJ}}\)
2 \(\mathrm{760 \mathrm{~kJ}}\)
3 \(\mathrm{616 \mathrm{~kJ}}\)
4 \(\mathrm{631 \mathrm{~kJ}}\)
NEET DIGITAL LIBRARY
CHXII08:THE D- & F-BLOCK ELEMENTS

321583 The trend in ionisation enthalpy of a transition element is not regular because

1 Removal of one electron alters the relative energies of \(\mathrm{4 s}\) and \(\mathrm{3 d}\) orbitals
2 Due to different E.C. (stability)
3 Poor screening of \(\mathrm{3 p}\) orbital
4 Due to decrease in effective nuclear charge
CHXII08:THE D- & F-BLOCK ELEMENTS

321584 The transition metal having highest \({\mathrm{3^{\text {rd }}}}\) ionisation enthalpy is

1 Mn
2 Fe
3 Cr
4 V
JEE Main - 2024
CHXII08:THE D- & F-BLOCK ELEMENTS

321585 Which element of the first transition series has highest third ionisation enthalpy?

1 \(\mathrm{\mathrm{Sc}}\)
2 \(\mathrm{\mathrm{Fe}}\)
3 \({\rm{Co}}\)
4 \(\mathrm{\mathrm{Zn}}\)
CHXII08:THE D- & F-BLOCK ELEMENTS

321586 Match the column I with column II and mark the appropriate choice.
Column I
Column II
A
Element with highest second ionisation enthalpy
P
Cr
B
Element with highest third ionisation enthalpy
Q
Cu
C
M in \(\left[ {{\rm{M}}{{\left( {{\rm{CO}}} \right)}_{\rm{6}}}} \right]\) is
R
Zn
D
Element with highest heat of atomisation
S
V

1 A - Q, B - R, C - P, D - S
2 A - S, B - R, C - P, D - Q
3 A - R, B - P, C - Q, D - S
4 A - P, B - Q, C - R, D - S
CHXII08:THE D- & F-BLOCK ELEMENTS

321587 The IP of \(\mathrm{\mathrm{Zr}}\) is \(\mathrm{674 \mathrm{~kJ} / \mathrm{mole}}\). The IP of Hf is

1 \(\mathrm{658 \mathrm{~kJ}}\)
2 \(\mathrm{760 \mathrm{~kJ}}\)
3 \(\mathrm{616 \mathrm{~kJ}}\)
4 \(\mathrm{631 \mathrm{~kJ}}\)
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CHXII08:THE D- & F-BLOCK ELEMENTS

321583 The trend in ionisation enthalpy of a transition element is not regular because

1 Removal of one electron alters the relative energies of \(\mathrm{4 s}\) and \(\mathrm{3 d}\) orbitals
2 Due to different E.C. (stability)
3 Poor screening of \(\mathrm{3 p}\) orbital
4 Due to decrease in effective nuclear charge
CHXII08:THE D- & F-BLOCK ELEMENTS

321584 The transition metal having highest \({\mathrm{3^{\text {rd }}}}\) ionisation enthalpy is

1 Mn
2 Fe
3 Cr
4 V
JEE Main - 2024
CHXII08:THE D- & F-BLOCK ELEMENTS

321585 Which element of the first transition series has highest third ionisation enthalpy?

1 \(\mathrm{\mathrm{Sc}}\)
2 \(\mathrm{\mathrm{Fe}}\)
3 \({\rm{Co}}\)
4 \(\mathrm{\mathrm{Zn}}\)
CHXII08:THE D- & F-BLOCK ELEMENTS

321586 Match the column I with column II and mark the appropriate choice.
Column I
Column II
A
Element with highest second ionisation enthalpy
P
Cr
B
Element with highest third ionisation enthalpy
Q
Cu
C
M in \(\left[ {{\rm{M}}{{\left( {{\rm{CO}}} \right)}_{\rm{6}}}} \right]\) is
R
Zn
D
Element with highest heat of atomisation
S
V

1 A - Q, B - R, C - P, D - S
2 A - S, B - R, C - P, D - Q
3 A - R, B - P, C - Q, D - S
4 A - P, B - Q, C - R, D - S
CHXII08:THE D- & F-BLOCK ELEMENTS

321587 The IP of \(\mathrm{\mathrm{Zr}}\) is \(\mathrm{674 \mathrm{~kJ} / \mathrm{mole}}\). The IP of Hf is

1 \(\mathrm{658 \mathrm{~kJ}}\)
2 \(\mathrm{760 \mathrm{~kJ}}\)
3 \(\mathrm{616 \mathrm{~kJ}}\)
4 \(\mathrm{631 \mathrm{~kJ}}\)
For More Updates join with Us
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CHXII08:THE D- & F-BLOCK ELEMENTS

321583 The trend in ionisation enthalpy of a transition element is not regular because

1 Removal of one electron alters the relative energies of \(\mathrm{4 s}\) and \(\mathrm{3 d}\) orbitals
2 Due to different E.C. (stability)
3 Poor screening of \(\mathrm{3 p}\) orbital
4 Due to decrease in effective nuclear charge
CHXII08:THE D- & F-BLOCK ELEMENTS

321584 The transition metal having highest \({\mathrm{3^{\text {rd }}}}\) ionisation enthalpy is

1 Mn
2 Fe
3 Cr
4 V
JEE Main - 2024
CHXII08:THE D- & F-BLOCK ELEMENTS

321585 Which element of the first transition series has highest third ionisation enthalpy?

1 \(\mathrm{\mathrm{Sc}}\)
2 \(\mathrm{\mathrm{Fe}}\)
3 \({\rm{Co}}\)
4 \(\mathrm{\mathrm{Zn}}\)
CHXII08:THE D- & F-BLOCK ELEMENTS

321586 Match the column I with column II and mark the appropriate choice.
Column I
Column II
A
Element with highest second ionisation enthalpy
P
Cr
B
Element with highest third ionisation enthalpy
Q
Cu
C
M in \(\left[ {{\rm{M}}{{\left( {{\rm{CO}}} \right)}_{\rm{6}}}} \right]\) is
R
Zn
D
Element with highest heat of atomisation
S
V

1 A - Q, B - R, C - P, D - S
2 A - S, B - R, C - P, D - Q
3 A - R, B - P, C - Q, D - S
4 A - P, B - Q, C - R, D - S
CHXII08:THE D- & F-BLOCK ELEMENTS

321587 The IP of \(\mathrm{\mathrm{Zr}}\) is \(\mathrm{674 \mathrm{~kJ} / \mathrm{mole}}\). The IP of Hf is

1 \(\mathrm{658 \mathrm{~kJ}}\)
2 \(\mathrm{760 \mathrm{~kJ}}\)
3 \(\mathrm{616 \mathrm{~kJ}}\)
4 \(\mathrm{631 \mathrm{~kJ}}\)
NEET DIGITAL LIBRARY
CHXII08:THE D- & F-BLOCK ELEMENTS

321583 The trend in ionisation enthalpy of a transition element is not regular because

1 Removal of one electron alters the relative energies of \(\mathrm{4 s}\) and \(\mathrm{3 d}\) orbitals
2 Due to different E.C. (stability)
3 Poor screening of \(\mathrm{3 p}\) orbital
4 Due to decrease in effective nuclear charge
CHXII08:THE D- & F-BLOCK ELEMENTS

321584 The transition metal having highest \({\mathrm{3^{\text {rd }}}}\) ionisation enthalpy is

1 Mn
2 Fe
3 Cr
4 V
JEE Main - 2024
CHXII08:THE D- & F-BLOCK ELEMENTS

321585 Which element of the first transition series has highest third ionisation enthalpy?

1 \(\mathrm{\mathrm{Sc}}\)
2 \(\mathrm{\mathrm{Fe}}\)
3 \({\rm{Co}}\)
4 \(\mathrm{\mathrm{Zn}}\)
CHXII08:THE D- & F-BLOCK ELEMENTS

321586 Match the column I with column II and mark the appropriate choice.
Column I
Column II
A
Element with highest second ionisation enthalpy
P
Cr
B
Element with highest third ionisation enthalpy
Q
Cu
C
M in \(\left[ {{\rm{M}}{{\left( {{\rm{CO}}} \right)}_{\rm{6}}}} \right]\) is
R
Zn
D
Element with highest heat of atomisation
S
V

1 A - Q, B - R, C - P, D - S
2 A - S, B - R, C - P, D - Q
3 A - R, B - P, C - Q, D - S
4 A - P, B - Q, C - R, D - S
CHXII08:THE D- & F-BLOCK ELEMENTS

321587 The IP of \(\mathrm{\mathrm{Zr}}\) is \(\mathrm{674 \mathrm{~kJ} / \mathrm{mole}}\). The IP of Hf is

1 \(\mathrm{658 \mathrm{~kJ}}\)
2 \(\mathrm{760 \mathrm{~kJ}}\)
3 \(\mathrm{616 \mathrm{~kJ}}\)
4 \(\mathrm{631 \mathrm{~kJ}}\)