question_answer

Monoclinic sulphur is an example of monoclinic crystal system. What are the characteristics of the crystal system?

A) \[a\ne b\ne c,\,\,\alpha =\beta =\gamma =90{}^\circ \]

B) \[a\ne b\ne c,\,\,\alpha \ne \beta \ne \gamma \ne 90{}^\circ \]

C) \[a=b\ne c,\,\,\alpha =\beta =\gamma =90{}^\circ \]

D) \[a\ne b\ne c,\,\,\alpha =\gamma =90{}^\circ ,\,\,\beta \ne 90{}^\circ \]

Correct Answer: D

Solution :

For monoclinic crystal system,\[a\ne b\ne c,\,\,\alpha =\gamma =90{}^\circ ,\,\,\beta \ne 90{}^\circ \]