321461
The compounds formed when small atoms like \(\mathrm{\mathrm{H}, \mathrm{C}}\) and \(\mathrm{\mathrm{N}}\) get trapped inside the crystal lattice of transition metals are known as
1 Complexes
2 Interstitial compounds
3 Clatherates
4 Alloys
Explanation:
Conceptual Questions
CHXII08:THE D- & F-BLOCK ELEMENTS
321462
Which property from the following is NOT exhibited by interstitial compounds?
1 Their melting points are higher than pure metal
2 Their densities are less than parent metal.
3 Their chemical properties are different than parent metal.
4 These are hard and good conductors of heat and electricity.
Explanation:
Chemical properties of interstitial compounds are similar to the parent metal.
MHTCET - 2021
CHXII08:THE D- & F-BLOCK ELEMENTS
321463
Which of the following is not an interstitial compound?
1 \(\mathrm{\mathrm{TiH}}\)
2 \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}}\)
3 \(\mathrm{\mathrm{Mn}_{2} \mathrm{C}_{3}}\)
4 \(\mathrm{W_{2} C}\)
Explanation:
\(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}}\) is not a interstitial compound.
CHXII08:THE D- & F-BLOCK ELEMENTS
321464
How many unpaired electrons are present in a \({\mathrm{\mathrm{Fe}^{2+}}}\) ion?
1 3
2 1
3 2
4 4
Explanation:
\({\mathrm{{ }_{26} \mathrm{Fe}=[\mathrm{Ar}] 3 \mathrm{~d}^{6} 4 \mathrm{~s}^{2}}}\) \({\mathrm{\mathrm{Fe}^{2+}=[\mathrm{Ar}] 3 \mathrm{~d}^{6}}}\) 4 unpaired electrons are present in \({\mathrm{\mathrm{Fe}^{2+}}}\) ion.
CHXII08:THE D- & F-BLOCK ELEMENTS
321465
Statement A : Magnetic moment values of actinides are lesser than the theoretically predicted values. Statement B : Actinide elements are strongly paramagnetic.
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.
Explanation:
The magnetic moment is less as the \(\mathrm{5 \mathrm{f}}\) electrons of actinides are less effectively shielded which results in quenching of orbital contribution, they are strongly paramagnetic due to presence of unpaired electrons
321461
The compounds formed when small atoms like \(\mathrm{\mathrm{H}, \mathrm{C}}\) and \(\mathrm{\mathrm{N}}\) get trapped inside the crystal lattice of transition metals are known as
1 Complexes
2 Interstitial compounds
3 Clatherates
4 Alloys
Explanation:
Conceptual Questions
CHXII08:THE D- & F-BLOCK ELEMENTS
321462
Which property from the following is NOT exhibited by interstitial compounds?
1 Their melting points are higher than pure metal
2 Their densities are less than parent metal.
3 Their chemical properties are different than parent metal.
4 These are hard and good conductors of heat and electricity.
Explanation:
Chemical properties of interstitial compounds are similar to the parent metal.
MHTCET - 2021
CHXII08:THE D- & F-BLOCK ELEMENTS
321463
Which of the following is not an interstitial compound?
1 \(\mathrm{\mathrm{TiH}}\)
2 \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}}\)
3 \(\mathrm{\mathrm{Mn}_{2} \mathrm{C}_{3}}\)
4 \(\mathrm{W_{2} C}\)
Explanation:
\(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}}\) is not a interstitial compound.
CHXII08:THE D- & F-BLOCK ELEMENTS
321464
How many unpaired electrons are present in a \({\mathrm{\mathrm{Fe}^{2+}}}\) ion?
1 3
2 1
3 2
4 4
Explanation:
\({\mathrm{{ }_{26} \mathrm{Fe}=[\mathrm{Ar}] 3 \mathrm{~d}^{6} 4 \mathrm{~s}^{2}}}\) \({\mathrm{\mathrm{Fe}^{2+}=[\mathrm{Ar}] 3 \mathrm{~d}^{6}}}\) 4 unpaired electrons are present in \({\mathrm{\mathrm{Fe}^{2+}}}\) ion.
CHXII08:THE D- & F-BLOCK ELEMENTS
321465
Statement A : Magnetic moment values of actinides are lesser than the theoretically predicted values. Statement B : Actinide elements are strongly paramagnetic.
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.
Explanation:
The magnetic moment is less as the \(\mathrm{5 \mathrm{f}}\) electrons of actinides are less effectively shielded which results in quenching of orbital contribution, they are strongly paramagnetic due to presence of unpaired electrons
321461
The compounds formed when small atoms like \(\mathrm{\mathrm{H}, \mathrm{C}}\) and \(\mathrm{\mathrm{N}}\) get trapped inside the crystal lattice of transition metals are known as
1 Complexes
2 Interstitial compounds
3 Clatherates
4 Alloys
Explanation:
Conceptual Questions
CHXII08:THE D- & F-BLOCK ELEMENTS
321462
Which property from the following is NOT exhibited by interstitial compounds?
1 Their melting points are higher than pure metal
2 Their densities are less than parent metal.
3 Their chemical properties are different than parent metal.
4 These are hard and good conductors of heat and electricity.
Explanation:
Chemical properties of interstitial compounds are similar to the parent metal.
MHTCET - 2021
CHXII08:THE D- & F-BLOCK ELEMENTS
321463
Which of the following is not an interstitial compound?
1 \(\mathrm{\mathrm{TiH}}\)
2 \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}}\)
3 \(\mathrm{\mathrm{Mn}_{2} \mathrm{C}_{3}}\)
4 \(\mathrm{W_{2} C}\)
Explanation:
\(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}}\) is not a interstitial compound.
CHXII08:THE D- & F-BLOCK ELEMENTS
321464
How many unpaired electrons are present in a \({\mathrm{\mathrm{Fe}^{2+}}}\) ion?
1 3
2 1
3 2
4 4
Explanation:
\({\mathrm{{ }_{26} \mathrm{Fe}=[\mathrm{Ar}] 3 \mathrm{~d}^{6} 4 \mathrm{~s}^{2}}}\) \({\mathrm{\mathrm{Fe}^{2+}=[\mathrm{Ar}] 3 \mathrm{~d}^{6}}}\) 4 unpaired electrons are present in \({\mathrm{\mathrm{Fe}^{2+}}}\) ion.
CHXII08:THE D- & F-BLOCK ELEMENTS
321465
Statement A : Magnetic moment values of actinides are lesser than the theoretically predicted values. Statement B : Actinide elements are strongly paramagnetic.
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.
Explanation:
The magnetic moment is less as the \(\mathrm{5 \mathrm{f}}\) electrons of actinides are less effectively shielded which results in quenching of orbital contribution, they are strongly paramagnetic due to presence of unpaired electrons
321461
The compounds formed when small atoms like \(\mathrm{\mathrm{H}, \mathrm{C}}\) and \(\mathrm{\mathrm{N}}\) get trapped inside the crystal lattice of transition metals are known as
1 Complexes
2 Interstitial compounds
3 Clatherates
4 Alloys
Explanation:
Conceptual Questions
CHXII08:THE D- & F-BLOCK ELEMENTS
321462
Which property from the following is NOT exhibited by interstitial compounds?
1 Their melting points are higher than pure metal
2 Their densities are less than parent metal.
3 Their chemical properties are different than parent metal.
4 These are hard and good conductors of heat and electricity.
Explanation:
Chemical properties of interstitial compounds are similar to the parent metal.
MHTCET - 2021
CHXII08:THE D- & F-BLOCK ELEMENTS
321463
Which of the following is not an interstitial compound?
1 \(\mathrm{\mathrm{TiH}}\)
2 \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}}\)
3 \(\mathrm{\mathrm{Mn}_{2} \mathrm{C}_{3}}\)
4 \(\mathrm{W_{2} C}\)
Explanation:
\(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}}\) is not a interstitial compound.
CHXII08:THE D- & F-BLOCK ELEMENTS
321464
How many unpaired electrons are present in a \({\mathrm{\mathrm{Fe}^{2+}}}\) ion?
1 3
2 1
3 2
4 4
Explanation:
\({\mathrm{{ }_{26} \mathrm{Fe}=[\mathrm{Ar}] 3 \mathrm{~d}^{6} 4 \mathrm{~s}^{2}}}\) \({\mathrm{\mathrm{Fe}^{2+}=[\mathrm{Ar}] 3 \mathrm{~d}^{6}}}\) 4 unpaired electrons are present in \({\mathrm{\mathrm{Fe}^{2+}}}\) ion.
CHXII08:THE D- & F-BLOCK ELEMENTS
321465
Statement A : Magnetic moment values of actinides are lesser than the theoretically predicted values. Statement B : Actinide elements are strongly paramagnetic.
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.
Explanation:
The magnetic moment is less as the \(\mathrm{5 \mathrm{f}}\) electrons of actinides are less effectively shielded which results in quenching of orbital contribution, they are strongly paramagnetic due to presence of unpaired electrons
321461
The compounds formed when small atoms like \(\mathrm{\mathrm{H}, \mathrm{C}}\) and \(\mathrm{\mathrm{N}}\) get trapped inside the crystal lattice of transition metals are known as
1 Complexes
2 Interstitial compounds
3 Clatherates
4 Alloys
Explanation:
Conceptual Questions
CHXII08:THE D- & F-BLOCK ELEMENTS
321462
Which property from the following is NOT exhibited by interstitial compounds?
1 Their melting points are higher than pure metal
2 Their densities are less than parent metal.
3 Their chemical properties are different than parent metal.
4 These are hard and good conductors of heat and electricity.
Explanation:
Chemical properties of interstitial compounds are similar to the parent metal.
MHTCET - 2021
CHXII08:THE D- & F-BLOCK ELEMENTS
321463
Which of the following is not an interstitial compound?
1 \(\mathrm{\mathrm{TiH}}\)
2 \(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}}\)
3 \(\mathrm{\mathrm{Mn}_{2} \mathrm{C}_{3}}\)
4 \(\mathrm{W_{2} C}\)
Explanation:
\(\mathrm{\mathrm{Fe}_{2} \mathrm{O}_{3}}\) is not a interstitial compound.
CHXII08:THE D- & F-BLOCK ELEMENTS
321464
How many unpaired electrons are present in a \({\mathrm{\mathrm{Fe}^{2+}}}\) ion?
1 3
2 1
3 2
4 4
Explanation:
\({\mathrm{{ }_{26} \mathrm{Fe}=[\mathrm{Ar}] 3 \mathrm{~d}^{6} 4 \mathrm{~s}^{2}}}\) \({\mathrm{\mathrm{Fe}^{2+}=[\mathrm{Ar}] 3 \mathrm{~d}^{6}}}\) 4 unpaired electrons are present in \({\mathrm{\mathrm{Fe}^{2+}}}\) ion.
CHXII08:THE D- & F-BLOCK ELEMENTS
321465
Statement A : Magnetic moment values of actinides are lesser than the theoretically predicted values. Statement B : Actinide elements are strongly paramagnetic.
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.
Explanation:
The magnetic moment is less as the \(\mathrm{5 \mathrm{f}}\) electrons of actinides are less effectively shielded which results in quenching of orbital contribution, they are strongly paramagnetic due to presence of unpaired electrons
