Which of the following systems do not give correct description of axial lengths and axial…

Chemistry · JEE Advanced · NTA Exams — Solid State

Which of the following systems do not give correct description of axial lengths and axial angles ?

\(\text { Hexagonal: } a=b \neq c, \alpha=\beta=90^{\circ}, \gamma=120^{\circ}\)
\(\text { Trigonal : } \mathrm{a}=\mathrm{b} \neq \mathrm{c}, \alpha=\beta=90^{\circ}, \gamma=90^{\circ}\)
\(\text { Monoclinic : } \mathrm{a} \neq \mathrm{b} \neq \mathrm{c}, \alpha=\beta=\gamma \neq 90^{\circ}\)
\(\text { Cubic: } a=b \neq c, \alpha=\beta=\gamma=90^{\circ}\)

Answer

(B) Trigonal : a = b c , = =90^ , =90^, (C) Monoclinic : a b c , = = 90^, (D) Cubic: a=b c, = = =90^

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