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why TiCl2 is paramagnetic but TiO2 is diamagnetic? Related: General ...
Introduction:
The magnetic properties of molecules depend on the presence of unpaired electrons. Transition metal compounds often exhibit paramagnetic or diamagnetic behavior due to the presence or absence of unpaired electrons in their d orbitals. In this context, we will discuss the magnetic properties of TiCl2 and TiO2.

TiCl2:
TiCl2 is a compound of titanium and chlorine. Titanium has an atomic number of 22, and its electronic configuration is [Ar] 3d^24s^2. In TiCl2, titanium is in its +2 oxidation state, which means it has lost two electrons. The electronic configuration of Ti2+ is [Ar] 3d^2.

Paramagnetism:
Paramagnetic substances are attracted to an external magnetic field due to the presence of unpaired electrons. TiCl2 is paramagnetic because titanium in its +2 oxidation state has two unpaired electrons in its d orbitals (3d^2). The presence of unpaired electrons allows the compound to align its magnetic moments with the external magnetic field, resulting in attraction.

TiO2:
TiO2 is a compound of titanium and oxygen. Titanium in TiO2 is in its +4 oxidation state, which means it has lost four electrons. The electronic configuration of Ti4+ is [Ar] 3d^0.

Diamagnetism:
Diamagnetic substances are repelled by an external magnetic field due to the absence of unpaired electrons. TiO2 is diamagnetic because titanium in its +4 oxidation state has all its d orbitals fully filled (3d^0). The absence of unpaired electrons means that there are no magnetic moments to align with an external magnetic field, resulting in repulsion.

Conclusion:
In summary, TiCl2 is paramagnetic because titanium in its +2 oxidation state has two unpaired electrons in its d orbitals. On the other hand, TiO2 is diamagnetic because titanium in its +4 oxidation state has all its d orbitals fully filled, with no unpaired electrons. The presence or absence of unpaired electrons in the d orbitals of transition metal compounds determines their magnetic properties.
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Read the passage given below and answer the following questions:The d block elements are the 40 elements contained in the four rows of ten columns (3-12) in the periodic table. As all the d block elements are metallic, the term d-block metals is synonymous. This set of d-block elements is also often identified as the transition metals, but sometimes the group 12 elements (zinc, cadmium, mercury) are excluded from the transition metals as the transition elements are defined as those with partly filled d or f shells in their compounds. Inclusion of the elements zinc, cadmium and mercury is necessary as some properties of the group 12 elements are appropriate logically to include with a discussion of transition metal chemistry. The term transition element or transition metal appeared to derive from early studies of periodicity such as the Mendeleev periodic table of the elements. His horizontal table of the elements was an attempt to group the elements together so that the chemistry of elements might be explained and predicted. In this table there are eight groups labeled I-VIII with each subdivided into A and B subgroups. Mendeleev recognized that certain properties of elements in Group VIII are related to those of some of the elements in Group VII and those at the start of the next row Group I. In that sense, these elements might be described as possessing properties transitional from one row of the table to the next.In the following questions, a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices on the basis of the above passage.Assertion (

Read the passage given below and answer the following questions:The d block elements are the 40 elements contained in the four rows of ten columns (3-12) in the periodic table. As all the d block elements are metallic, the term d-block metals is synonymous. This set of d-block elements is also often identified as the transition metals, but sometimes the group 12 elements (zinc, cadmium, mercury) are excluded from the transition metals as the transition elements are defined as those with partly filled d or f shells in their compounds. Inclusion of the elements zinc, cadmium and mercury is necessary as some properties of the group 12 elements are appropriate logically to include with a discussion of transition metal chemistry. The term transition element or transition metal appeared to derive from early studies of periodicity such as the Mendeleev periodic table of the elements. His horizontal table of the elements was an attempt to group the elements together so that the chemistry of elements might be explained and predicted. In this table there are eight groups labeled I-VIII with each subdivided into A and B subgroups. Mendeleev recognized that certain properties of elements in Group VIII are related to those of some of the elements in Group VII and those at the start of the next row Group I. In that sense, these elements might be described as possessing properties transitional from one row of the table to the next.In the following questions, a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices on the basis of the above passage.Assertion (

Read the passage given below and answer the following questions:The d block elements are the 40 elements contained in the four rows of ten columns (3-12) in the periodic table. As all the d block elements are metallic, the term d-block metals is synonymous. This set of d-block elements is also often identified as the transition metals, but sometimes the group 12 elements (zinc, cadmium, mercury) are excluded from the transition metals as the transition elements are defined as those with partly filled d or f shells in their compounds. Inclusion of the elements zinc, cadmium and mercury is necessary as some properties of the group 12 elements are appropriate logically to include with a discussion of transition metal chemistry. The term transition element or transition metal appeared to derive from early studies of periodicity such as the Mendeleev periodic table of the elements. His horizontal table of the elements was an attempt to group the elements together so that the chemistry of elements might be explained and predicted. In this table there are eight groups labeled I-VIII with each subdivided into A and B subgroups. Mendeleev recognized that certain properties of elements in Group VIII are related to those of some of the elements in Group VII and those at the start of the next row Group I. In that sense, these elements might be described as possessing properties transitional from one row of the table to the next.In the following questions, a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices on the basis of the above passage.Assertion (

why TiCl2 is paramagnetic but TiO2 is diamagnetic? Related: General Properties of Transition Elements - The d- and f- Block Elements, Class 12, Chemistry?
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