Which primitve unit cell has unequal edge lengths a- b - c and all axial angles are unequal and different from 90-

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Standard XII

Chemistry

Allotropes of Sulphur

Which primitv...

Question

Which primitve unit cell has unequal edge lengths $(a \neq b \neq c)$ and all axial angles are unequal and different from $90^{\circ}$ ?

Hexagonal

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Monoclinic

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Tetragonal

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Triclinic

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Solution

The correct option is D Triclinic
Among the seven basic or primitive crystalline systems, the triclinic system is most unsymmetrical.
Triclinic primitive unit cell has dimensions as $(a \neq b \neq c)$ and $α \neq β \neq γ \neq 90^{0}$ .

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Similar questions

Q. Which primitive unit cell has unequal edge lengths (

a \neq b \neq c

) and all axial angles different from 90?

Which of the following system has all unequal edge lengths and all bond angles equal?

Q. Which primitive unit cell has all the edge lengths equal i.e.

a = b = c

and all the axial angles equal to each other but not equal to

90^{\circ}

i.e.

α = β = γ \neq 90^{\circ}

Q. A quadrilateral in which all angles are

90^{\circ}

, each pair of opposite sides is parallel and equal, adjacent sides are unequal, is known as.

Match the following:
$\begin{matrix} Quadrilateral & Properties 1. Trapezium & A) A parallelogram, where diagonals bisect at right angles, all sides are equal and none of the angles are equal to 90^{\circ} 2. Square & B) A quadrilateral, where only one pair of opposite sides is parallel and unequal 3. Rectangle & C) A parallelogram, where diagonals are equal, all sides equal and all the angles are 90^{\circ} 4. Rhombus & D) A parallelogram, where diagonals and opposite sides are equal, and all the angles are 90^{\circ} \end{matrix}$

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Which primitve unit cell has unequal edge lengths (a≠b≠c) and all axial angles are unequal and different from 90∘?

The correct option is D TriclinicAmong the seven basic or primitive crystalline systems, the triclinic system is most unsymmetrical. Triclinic primitive unit cell has dimensions as (a≠b≠c) and α≠β≠γ≠900.

Which primitve unit cell has unequal edge lengths $(a \neq b \neq c)$ and all axial angles are unequal and different from $90^{\circ}$ ?

The correct option is D Triclinic
Among the seven basic or primitive crystalline systems, the triclinic system is most unsymmetrical.
Triclinic primitive unit cell has dimensions as $(a \neq b \neq c)$ and $α \neq β \neq γ \neq 90^{0}$ .