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QJEEM19Chb1a4: JEE Main 2019 Chemistry - Class 12 JEEM19Chb1a4 Solution: A compound of formula A 2 B 3 has the hcp lattice. Which atom…

A compound of formula A2B3 has the hcp lattice. Which atom forms the hcp lattice and what fraction of tetrahedral voids is occupied by the other atoms :

Multiple Choice Options

  • A hcp lattice - A, 13 Tetrahedral voids-B
  • B hcp lattice - B, 13 Tetrahedral voids - A
  • C hcp lattice - A, 23 Tetrahedral voids - B
  • D hcp lattice - B, 23 Tetrahedral voids - A

Step-by-Step Verified Solution

A2B3 has HCP lattice

If A form HCP,
then 3th4 of THV must occupied by B to form A2B3

If B form HCP, then 1th3 of THV must occupied by A to form A2B3

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