🧪 Chemistry · Chapter-Wise Mock Test
~1 questions per paper · 4% Chemistry weightage
Z = 4 (FCC)Z = 2 (BCC)Z = 1 (SCC)Packing = 74% (HCP/FCC)ρ = ZM/NₐVNumber of atoms per unit cell (FCC=4, BCC=2, SCC=1), packing efficiency (FCC/HCP=74%, BCC=68%), density calculations using ρ = ZM/NₐV, and types of crystal defects (Schottky, Frenkel) are most tested.
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