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AP EAMCET · Chemistry · Solid State

A metal crystallizes in two phases, one as fcc and another as bcc with unit cell edge lengths of 3.5 A° and 3.0 A°, respectively. The ratio of density of fcc and bcc phases approximately is

  1. A 1.5:1.0
  2. B 1.0:1.5
  3. C 1.26:1
  4. D 1:1.26
Verified Solution

Answer & Solution

Correct Answer

(C) 1.26:1

Step-by-step Solution

Detailed explanation

We know that, Density of the cell is given as, ρ=Z×MWa3×NA Here, Z= Rank of cubic lattice Mw= Molecular weight of lattice a3 =edge length3= Volume NA= Avogadro's number For fcc, Z=4 and given edge length a=3.5 A°…