JEE Main 2012 Chemistry question
Not in JEE Main or NEET syllabus
Ammonium chloride crystallizes in a body centred cubic lattice with edge length of unit cell of 390 pm. If the size of chloride ion is 180pm, the size of ammonium ion would be
Answer: (2)
Solution
In the CsCl-type (bcc) structure the ions touch along the body diagonal: $ + =
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