An element X with an atomic mass of 81 {\u} has density 10.2 {\g} {\cm}^{-3}. If the volume of unit cell is 2.7 \times 10^{-23} {\cm}^3, identify the type of cubic unit cell. ( Given : {\N}_{ {\A}}=6.022 \times 10^{23} {\mol}^{-1} )

CBSE Class 12 Chemistry 2019 Outside Delhi Set 2 Solved Paper

Question : 17 of 27

Marks: +1, -0

An element

X

with an atomic mass of

81 {\u}

has density

10.2 {\g} {\cm}^{-3}

. If the volume of unit cell is

2.7 × 10^{-23} {\cm}^3

, identify the type of cubic unit cell.

(

Given :

{\N}_{ {\A}}=6.022 × 10^{23} {\mol}^{-1}

)

Solution:

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