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JEE Main202116 Mar 2021Morning ShiftChemistrySolid StateActual

A certain element crystallises in a bcc lattice of unit cell edge length 27 A o . If the same element under the same conditions crystallises in the fcc lattice, the edge length of the unit cell in A o will be __________. (Round off to the Nearest Integer). [Assume each lattice point has a single atom] [Assume 3 = 1 . 73 , 2 = 1 . 41 ]

Correct answer

0

Step-by-step solution

For BCC   3 a = 4 r so r = 3 4 × 27 for FCC    a = 2 2 r = 2 × 2 × 3 4 × 27 = 3 2 × 27 = 33

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