The Unit cell with crystallographic dimensions a=b≠c , α=β=γ=90 degrees is:
Correct answer: B. Tetragonal
- A. Cubic
- B. Tetragonal
- C. Monoclinic
- D. Hexagonal
Explanation
A tetragonal unit cell has two equal dimensions (a = b ≠ c) and all angles equal to 90 degrees (α = β = γ = 90°).
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About Crystalline Solids
Crystalline solids contain particles arranged in a regular repeating lattice described by a unit cell. Their study includes coordination number, packing efficiency, density, anisotropy, cleavage, polymorphism and common crystal systems, along with ionic, molecular, covalent network and metallic crystals. Crystalline order differs from the random arrangement of amorphous solids.
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