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12th Class Chemistry The Solid State / ठोस प्रावस्था Question Bank 12th CBSE Chemistry The Solid State

  • question_answer
      If the radius ofanion in an ionic solids is 100 pm, what should be the radius of cation that fits in the (a) cubic hole, (b) octahedral hole, (c) tetrahedral hole?

    Answer:

      In hcp lattice each third layer is parallel to first it is ABAB ...........type. In ccp lattice each fourth layer is parallel to the first layer. It is ABCABC......... type. (a) For cubic hole r = 0.732 R (b) For octahedral hole r = 0.414 R (c) For tetrahedral hole r = 0.225 R.


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