In a solid ' \( A B \) ' having the \( \mathrm{NaCl} \) structure, \( ' A \) ' atoms occupy the ...

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In a solid ' \( A B \) ' having the \( \mathrm{NaCl} \) structure, \( ' A \) ' atoms occupy the corners of the cubic unit cell. If all the face centred atoms along one of the axes are removed, then the resultant stoichiometry of the solid is:
(A) \( A B_{2} \)
(B) \( A_{2} B \)
(C) \( A_{4} B_{3} \)
(D) \( A_{3} B_{4} \)
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