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1
MHT CET 2025 19th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following statements is NOT correct regarding voids in lattice structure?

A
Four spheres are involved in the formation of a tetrahedral void.
B
The octahedral void is surrounded by six spheres.
C
There are two tetrahedral voids associated with each atom.
D
There is one octahedral void associated with two atoms.
2
MHT CET 2025 19th April Morning Shift
MCQ (Single Correct Answer)
+1
-0
Calculate the volume of unit cell having atomic radius 141.4 pm forming fcc unit cell.
A
$9.3 \times 10^{-23} \mathrm{~cm}^3$
B
$8.1 \times 10^{-23} \mathrm{~cm}^3$
C
$6.4 \times 10^{-23} \mathrm{~cm}^3$
D
$4.7 \times 10^{-23} \mathrm{~cm}^3$
3
MHT CET 2025 19th April Morning Shift
MCQ (Single Correct Answer)
+1
-0
Which from following solids is isotropic?
A
Glass
B
Ceramics
C
Graphite
D
Ice
4
MHT CET 2025 19th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Calculate the number of atoms present in 1.58 g metal if it forms bcc structure.

$$\left[\rho \times \mathrm{a}^3=1.58 \times 10^{-22} \mathrm{~g}\right]$$

A
$1.0 \times 10^{22}$
B
$2.0 \times 10^{22}$
C
$3.0 \times 10^{22}$
D
$4.0 \times 10^{22}$
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