Komal Ojha posted an Question
July 29, 2020 โ€ข 21:11 pm 30 points
  • IIT JAM
  • Chemistry (CY)

Please explain this question

please explain this question of crystal lattice of this type of question

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    Priyanshu kumar best-answer

    It is given that NH4Cl crystallises in Bcc cubic lattice and you know oppositely charged touch each other along the body diagonal...So you can proceed with this formula

  • Komal ojha

    but the question is saying that distance between two opp.ions

    eduncle-logo-app

    yes komal see the attached image...2(r+ +r-) = root 3 a...so from this you can easily find

  • comment-profile-img>
    Dinesh khalmaniya 1

    yes, NH4Cl is an example of NaCl but here already mentioned that it is BCC so we will use BCC i.e, 4r =โˆš2a formula

    eduncle-logo-app

    please accept the answer if you got it ๐Ÿ™๐Ÿ™

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