profile-img
Sundaram Singh Rajpoot posted an Question
January 23, 2021 • 03:20 am 30 points
  • IIT JAM
  • Chemistry (CY)

A crystal is made of particles a and b. a forms fcc packing and b occupies all the octahas voids. if all the particles along the plane as shown in figure are re

A crystal is made of particles A and B. A forms fCC packing and B OCCupies all the Octahas voids. If all the particles along the plane as shown in figure are removed, then, the formula nis crystal would be ahe 11. ad B A B AR LAL B B B 18 A A AB/ B B . 79 AL B (A) AB (B) AB, (C) A,B (D) none of these 20

2 Answer(s) Answer Now
  • 1 Likes
  • 3 Comments
  • 0 Shares
  • Suman Kumar

    https://doubtnut.com/question-answer-chemistry/a-crystal-is-made-of-particles-a-and-b-from-fcc-packing-and-b-occupies-all-the-octahedral-voids-if-a-17241902 option A is correct

  • comment-profile-img>
    Priyanshu kumar best-answer

    option A

    eduncle-logo-app

    please explain

    eduncle-logo-app

    In fcc, a total of 4 octahedral voids are present. So, it contains 4 A and 4 B atoms but  all the particles along the plane as shown in the figure given in the question are removed.This plane contains 3/2 octahedral void atoms (1 at body center and 2 at edge center) and 3/2 lattice atoms (2 face centers and 4 corners). So, the formula will be A3/2 B3/2 = AB

    eduncle-logo-app

    https://doubtnut.com/question-answer-chemistry/a-crystal-is-made-of-particles-a-and-b-from-fcc-packing-and-b-occupies-all-the-octahedral-voids-if-a-17241902 check this video solution too

    eduncle-logo-app

    got sundaram?

    eduncle-logo-app

    thank you

whatsapp-btn

Do You Want Better RANK in Your Exam?

Start Your Preparations with Eduncle’s FREE Study Material

  • Updated Syllabus, Paper Pattern & Full Exam Details
  • Sample Theory of Most Important Topic
  • Model Test Paper with Detailed Solutions
  • Last 5 Years Question Papers & Answers