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1
MHT CET 2021 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the density of an element (At mass 100 g mol$$^{-1}$$) having BCC structure with edge length 400 pm?

A
3.2 g cm$$^{-3}$$
B
8.2 g cm$$^{-3}$$
C
5.18 g cm$$^{-3}$$
D
4.8 g cm$$^{-3}$$
2
MHT CET 2021 21th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is the percentage efficiency of packing in BCC structure?

A
32%
B
74%
C
26%
D
68%
3
MHT CET 2021 21th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

An element with simple cubic close structure has edge length of unit cell $$3.86 ~\mathop A\limits^o$$. What is the radius of atom?

A
$$5.79 \times 10^{-8} \mathrm{~cm}$$
B
$$1.93 \times 10^{-8} \mathrm{~cm}$$
C
$$3.86 \times 10^{-8} \mathrm{~cm}$$
D
$$2.43 \times 10^{-8} \mathrm{~cm}$$
4
MHT CET 2021 21th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is the volume of unit cell of a metal (at. mass $$25 \mathrm{~g} \mathrm{~mol}^{-1}$$ ) having $$\mathrm{BCC}$$ structure and density $$3 \mathrm{~g} \mathrm{~cm}^{-3}$$ ?

A
$$3.64 \times 10^{-23} \mathrm{~cm}^3$$
B
$$1.56 \times 10^{-24} \mathrm{~cm}^3$$
C
$$2.76 \times 10^{-23} \mathrm{~cm}^3$$
D
$$1.88 \times 10^{-24} \mathrm{~cm}^3$$
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