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JEE MAIN 2019
09-01-19 S2
Question
At $100^{\circ} \mathrm{C}$, copper $(\mathrm{Cu})$ has FCC unit cell structure with cell edge length of $\mathrm{x} \AA$. What is the approximate density of Cu (in $\mathrm{g} \mathrm{cm}^{-3}$ ) at this temperature? [Atomic Mass of $\mathrm{Cu}=63.55 \mathrm{u}$ ]
Select the correct option:
A
$\frac{422}{x^3}$
B
$\frac{205}{x^3}$
C
$\frac{105}{x^3}$
D
$\frac{211}{x^3}$
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
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