BHU PMT BHU PMT Solved Paper-2004

  • question_answer
    The number of lattice arrangements in different crystal systems are:

    A)  8                                            

    B)  7

    C)  9                                            

    D)  14

    Correct Answer: B

    Solution :

                     There are seven different types of lattice systems 1. Cubic (e.g.,\[NaCl\]) 2. Monoclinic (e.g.,\[CaS{{O}_{4}}.2{{H}_{2}}O\]) 3. Onhorhombic (e.g.,\[MgS{{O}_{4}}.7{{H}_{2}}O\]) 4. Rhombohedral (e.g.,\[CaC{{O}_{3}}\]) 5. Tetragonal (e.g.,\[Ti{{O}_{2}})\] 6. Triclinic (e.g.,\[{{K}_{2}}C{{r}_{2}}{{O}_{7}}\]) 7. Hexagonal (e.g.,\[Si{{O}_{2}}\])


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