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JEE Advanced
Exam
JEE Advanced
Subject
Chemistry
Chapter
Solid State

JEE Advanced · Chemistry · Solid State

Identify the correct statement(s) of the following

Identify the correct statement(s) of the following

Options

  1. ADiamond and Zinc blende are isomorphs
  2. BCo-ordination number of oxide ion in corundum structure is 6.
  3. CVoid fraction of bcc unit cell is 0.26
  4. DZnAl2O4\mathrm{ZnAl}_2 \mathrm{O}_4 has spinel structure and Al3+\mathrm{Al}^{3+} occupies octahedral void

Correct answer

D. ZnAl2O4\mathrm{ZnAl}_2 \mathrm{O}_4 has spinel structure and Al3+\mathrm{Al}^{3+} occupies octahedral void

Step-by-step solution

Diamond and zinc blende have similar structure. ZnAl2O4\mathrm{ZnAl}_2 \mathrm{O}_4 has spinel structure. Co-ordination number of oxide ion in Al2O3\mathrm{Al}_2 \mathrm{O}_3 is 4 and void fraction of bcc unit cell 0.32
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