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1
MHT CET 2021 23rd September Evening Shift
MCQ (Single Correct Answer)
+1
-0

An element is found to crystallize with $$\mathrm{BCC}$$ structure having density $$8.55 \mathrm{~g} \mathrm{~cm}^{-3}$$. What is the edge length of unit cell? (At. mass of element $$=93$$)

A
$$\left(3.61 \times 10^{-23}\right)^{1 / 3} \mathrm{~cm}$$
B
$$\left(3.91 \times 10^{-20}\right)^{1 / 3} \mathrm{~cm}$$
C
$$\left(3.01 \times 10^{-24}\right)^{1 / 3} \mathrm{~cm}$$
D
$$\left(3.30 \times 10^{-20}\right)^{1 / 3} \mathrm{~cm}$$
2
MHT CET 2021 23th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

How many particles per unit cell are present in $$\mathrm{BCC}$$ structure?

A
1
B
4
C
3
D
2
3
MHT CET 2021 23th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

An element with BCC structure has edge length of $$500 \mathrm{~pm}$$. If it's density is $$4 \mathrm{~g} \mathrm{~cm}^{-3}$$, find atomic mass of the element?

A
$$150 \mathrm{~g} \mathrm{~mol}^{-1}$$
B
$$100 \mathrm{~g} \mathrm{~mol}^{-1}$$
C
$$125 \mathrm{~g} \mathrm{~mol}^{-1}$$
D
$$250 \mathrm{~g} \mathrm{~mol}^{-1}$$
4
MHT CET 2021 23th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is the atomic radius of polonium if it crystallises in a simple cubic structure with edge length of unit cell $$336 \mathrm{~pm}$$ ?

A
84 pm
B
168 pm
C
234 pm
D
336 pm
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