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TiO(2) is well known example of :...

`TiO_(2)` is well known example of `:`

A

triclinic system

B

tetragonal system

C

Monoclinic system

D

None of these

Text Solution

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The correct Answer is:
To determine the crystal system of titanium oxide (TiO₂), we need to analyze the properties of its unit cell. ### Step-by-Step Solution: 1. **Identify the Unit Cell Parameters**: - The unit cell of a crystal is defined by its edge lengths (A, B, C) and the angles (α, β, γ) between them. - For TiO₂, it is stated that A = B, but B ≠ C. 2. **Analyze the Angles**: - The angles α, β, and γ are given as 90°. - This means that the unit cell has right angles between the edges. 3. **Compare with Crystal Systems**: - **Tetragonal System**: In a tetragonal system, two sides are equal (A = B) and the angles are all 90°. - **Triclinic System**: No sides are equal and angles are not 90°. - **Monoclinic System**: Two sides are equal (A = C or B = C) and one angle is not 90°. 4. **Conclusion**: - Since TiO₂ has A = B, B ≠ C, and all angles equal to 90°, it fits the criteria for the tetragonal system. Thus, **TiO₂ is a well-known example of the tetragonal system**. ### Final Answer: **TiO₂ is well known example of the tetragonal system.** ---
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