Q143 · CSIR NET Chemistry, December 2019
Paper: CSIR NET December 2019 · Subject: Physical Chemistry · Chapter: Solid State Chemistry · Topic: Crystal Systems Lattices · Marks: 2 · Difficulty: Medium
Iron belongs to the BCC lattice. The Miller indices of the second allowed reflection in the powder diffraction pattern of iron would be
(a)(100)
(b)(111)
(c)(200)
(d)(210)
Answer
Answer: C ✓ checked by 4AB · confidence high
Explanation
bcc allows h + k + l even: (110) first, then (200).
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