A unit cell of `BaCl_2` (fluorite structure) is made up of
A unit cell of `BaCl_2` (fluorite structure) is made up of
A. four `Ba^(2+)` ions and four `Cl^-` ions
B. four `Ba^(2+)` ions and eight `Cl^-` ions
C. eight `Ba^(2+)` ions and four `Cl^-` ions
D. four `Ba^(2+)` ions and six `Cl^-` ions
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Correct Answer - C
In fluorite structure, cations form ccp structure and anions are present in all tetrahedral holes. Hence, no. of `Ba^(2+)` ions =8 and no. of `Cl^-` ions = 4
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