Multiple choice

Which of the following matchings is not correct?

  1. Cubic: a = b = c and α = β = γ = 90o

  2. Tetragonal: a = b ≠ c and α = β = γ = 90o

  3. Orthorhombic: a ≠ b ≠ c and α = β = γ = 90o

  4. Rhombohedral: a = b = c and α = β = γ ≠ 90<sup style="font-family:">o

  5. Monoclinic: a ≠ b ≠ c and α ≠ β ≠ γ ≠ 90o
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A Correct answer
Explanation

Correct match Cubic : a = b = c and α = β = γ = 90o Monoclinic: a  ≠ b ≠ c and α = γ = 90o, β ≠ 90o Triclinic: a ≠ b ≠ c and α ≠ β ≠ γ ≠ 90o

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