1.

Potassium dichromatic, blue vitriol, and boric acid all crystal-lize in theA. cubic ( or regular) systemB. orthorhomic ( or rhombic) systemC. rhombohedral ( or trigonal) systemD. triclinic (or anorthitic) system

Answer» Correct Answer - 4
They are crystallize in the triclinic system `:a!=b!=c` and `alpha!=beta!=gamma!=90^(@)` .Other examples are `CuF_(2)` and `NaHSO_(4)`.


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