Which of the following is correct for hexagonal crystal system?
Answer & explanation
Correct answer: option 3
| Crystal system | Edge length | Angles |
| 1. Cubic | a = b = c | α = β = γ = 90o |
| 2. Tetragonal | a = b ≠ c | α = β = γ = 90o |
| 3. Orthorhombic | a ≠ b ≠ c | α = β = γ = 90o |
| 4. Monoclinic | a ≠ b ≠ c | α = γ = 90o , β ≠ 90o |
| 5. Triclinic | a ≠ b ≠ c | α ≠ β ≠ γ ≠ 90o |
| 6. Hexagonal | a = b ≠ c | α = β = 90o , γ = 120o |
| 7. Rhombohedral | a = b = c | α = β = γ ≠ 90o |