The relation between axis and angles a neq b | vedclass

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Question

(B) The crystal system defined by the axial distances $a 
eq b 
eq c$ and the axial angles $\alpha = \gamma = 90^{\circ}, \beta 
eq 90^{\circ}$ is

Vedclass · Accepted Answer

Monoclinic

Vedclass · Answer

(B) The crystal system defined by the axial distances $a 
eq b 
eq c$ and the axial angles $\alpha = \gamma = 90^{\circ}, \beta 
eq 90^{\circ}$ is known as the monoclinic system.In this system,none of the edge lengths are equal.Two of the interfacial angles are equal to $90^{\circ}$,while the third angle $\beta$ is not equal to $90^{\circ}$.An example of a monoclinic crystal system is $Na_2SO_4 \cdot 10H_2O$.Therefore,the correct option is $B$.

The relation between axis and angles $a \neq b \neq c$ and $\alpha = \gamma = 90^{\circ}, \beta \neq 90^{\circ}$ corresponds to which crystal system?

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