NEET 2002 Chemistry question

Not in JEE Main or NEET syllabus

Number of atom per unit cell in B.C.C. :

(1)
(2)
(3)Correct
(4)

Answer: (3)

Solution

In a body-centred cubic unit cell there are 8 atoms at the corners, each shared by 8 unit cells, contributing atom, plus 1 atom fully inside at the body centre. Total $=

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Question ID VK-088956