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1
MHT CET 2025 20th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Calculate the number of unit cells in $1 \mathrm{~cm}^3$ volume of an element if unit cell edge length is $4.0 \times 10^{-8} \mathrm{~cm}$.

A
$2.63 \times 10^{22}$
B
$1.56 \times 10^{22}$
C
$3.34 \times 10^{22}$
D
$4.50 \times 10^{22}$
2
MHT CET 2025 20th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following dopants is used in germanium to form n-type semiconductor?

A
As
B
B
C
In
D
Ga
3
MHT CET 2025 20th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Identify the type of defect from following in stainless steel.

A
Substitutional impurity defect
B
Interstitial impurity defect
C
Metal excess defect
D
Frenkel defect
4
MHT CET 2025 20th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Calculate the total number of tetrahedral and octahedral voids formed in 0.6 mol of a compound if it forms hcp structure.

A
$3.613 \times 10^{24}$
B
$7.226 \times 10^{24}$
C
$1.084 \times 10^{24}$
D
$2.913 \times 10^{24}$
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