Chemistry - Solid State Question with Solution | TestHub

ChemistrySolid StateGeneralEasy2 minPYQ_2020

ChemistryEasysingle choice

An element crystallizes both in fcc and bcc lattice. If the density of the element in the two forms is the same, the ratio of unit cell length of fcc to that of bcc lattice is

Options:

Answer:

Solution:

$Z = \frac{a^{3} \times d \times N_{A}}{M}$
fcc (4) $= \frac{a_{1}^{3} \times d \times N_{A}}{M}$ …(i)
bcc (2) $= \frac{a_{2}^{3} \times d \times N_{A}}{M}$ …(ii)
Dividing equation (i) by (ii)
$2 = {(\frac{a_{1}}{a_{2}})}^{3}$
$\frac{a_{1}}{a_{2}} = 2^{1 / 3}$

Stream:JEESubject:ChemistryTopic:Solid StateSubtopic:General

⏱ 2mℹ️ Source: PYQ_2020

Doubts & Discussion

Loading discussions...