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Hint: Before answering this question, we should first know about Rutile. Titanium oxide ($Ti{{O}_{2}}$) is a mineral which is also known as Rutile. Its refractive indices are one of the highest at visible wavelengths of any crustal. It has high dispersion and large birefringence.
Complete answer:
The name Rutile is derived from the Latin word Rutilus(Red) as the deep red color could be observed in some species if we see it through transmitted light. Abraham Gottlob Werner discovered Rutile in 1803. The composition of natural rutile is there is 10% of iron and Niobium and tantalum.
In High temperature and pressure metamorphic rocks and igneous rocks, Rutile is a usual mineral that is used. It is considered one of the most stable polymorphs $Ti{{O}_{2}}$ at every temperature.
It has a tetragonal unit cell and has a framework of unit cell i.e a = b = 4.584 ${{A}^{\circ }}$and c = 2.953 ${{A}^{\circ }}$. The positive ions of titanium have coordination number six, which means they are enclosed by octahedron having six oxygen atoms and the coordination number of negative ions of oxygen is three i.e trigonal planar coordination.
Titanium atoms in titanium oxide form a bcc arrangement. This unit cell consists of two atoms per unit cell. So, x = 2
Oxygen atoms are in titanium oxide are in trigonal voids. This void’s coordination number is three. So, y = 3
Therefore, x+y = 2+3 = 5
So, Option (C) 5 is correct.
Note:
Rutile is a vital part of ore deposits and heavy minerals. Miners help in the extraction and separation of useful and valuable minerals like Zircon, ilmenite. Some of its uses are- As a pigment, in the manufacture of titanium metal, refractory ceramic.
Complete answer:
The name Rutile is derived from the Latin word Rutilus(Red) as the deep red color could be observed in some species if we see it through transmitted light. Abraham Gottlob Werner discovered Rutile in 1803. The composition of natural rutile is there is 10% of iron and Niobium and tantalum.
In High temperature and pressure metamorphic rocks and igneous rocks, Rutile is a usual mineral that is used. It is considered one of the most stable polymorphs $Ti{{O}_{2}}$ at every temperature.
It has a tetragonal unit cell and has a framework of unit cell i.e a = b = 4.584 ${{A}^{\circ }}$and c = 2.953 ${{A}^{\circ }}$. The positive ions of titanium have coordination number six, which means they are enclosed by octahedron having six oxygen atoms and the coordination number of negative ions of oxygen is three i.e trigonal planar coordination.
Titanium atoms in titanium oxide form a bcc arrangement. This unit cell consists of two atoms per unit cell. So, x = 2
Oxygen atoms are in titanium oxide are in trigonal voids. This void’s coordination number is three. So, y = 3
Therefore, x+y = 2+3 = 5
So, Option (C) 5 is correct.
Note:
Rutile is a vital part of ore deposits and heavy minerals. Miners help in the extraction and separation of useful and valuable minerals like Zircon, ilmenite. Some of its uses are- As a pigment, in the manufacture of titanium metal, refractory ceramic.
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