A Crystal is made of particles X, Y and Z. X Forms FCC packing, Y occupies all octahedral voids of X and Z occupies all tetrahedral voids of X. If all the particles along one body diagonal are removed, then the formula of crystal would be

Question

A Crystal is made of particles X, Y and Z. X Forms FCC packing, Y occupies all octahedral voids of X and Z occupies all tetrahedral voids of X. If all the particles along one body diagonal are removed, then the formula of crystal would be, X Y Z 2, X 2 Y Z 2, X 8 Y 4 Z 5, X 5 Y 4 Z 8

MARKS App · Accepted Answer

When all particles along body diagonal are removed, 2 X atoms from corner are removed one Y particle removed and 2 Z particle removed X p a r t i c l e = 1 8 × 6 + 1 2 × 6 = 15 4 (Y particle = 3 , Z particle = 6 ) ∴ X 15 4 Y 3 Z 6 = X 5 Y 4 Z 8

Search any question & find its solution

Looking for more such questions to practice?