IIT 2001

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In a solid 'AB' having the NaCl structure 'A' atoms occupy the corners of the cubic unit cell.If all the face-centered atoms along one of the axes are removed,then the resulting stoichiometry of solid is ---
A. AB₂
B. A₂B
C. A₄B₃
D. A₃B₄

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Avik ·2010-02-27 07:16:49

Fr NaCl struct., Formula shud've been - A₄B₄.

Atoms along one axes are removed matlab, frm 2 opp. faces, 2 lattice points are removed => 1/2*2 = 1 "A" atom removed.

Hence, resulting formula - A₃B₄ ----D).

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