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1
MHT CET 2023 11th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

Find the radius of an atom in fcc unit cell having edge length $$405 \mathrm{pm}$$.

A
202.5 pm
B
175.3 pm
C
143.2 pm
D
181.0 pm
2
MHT CET 2023 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which formula is used to calculate edge length in bcc structure?

A
$$a=\frac{\sqrt{3} \mathrm{r}}{4}$$
B
$$a=\frac{4}{\sqrt{3} \mathrm{r}}$$
C
$$a=\frac{\sqrt{3}}{4 r}$$
D
$$a=\frac{4 r}{\sqrt{3}}$$
3
MHT CET 2023 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is atomic mass of an element with $$\mathrm{BCC}$$ structure and density $$10 \mathrm{~g} \mathrm{~cm}^{-3}$$ having edge length $$300 \mathrm{~pm}$$ ?

A
$$51.0 \mathrm{~g} \mathrm{~mol}^{-1}$$
B
$$60.0 \mathrm{~g} \mathrm{~mol}^{-1}$$
C
$$81.3 \mathrm{~g} \mathrm{~mol}^{-1}$$
D
$$96.8 \mathrm{~g} \mathrm{~mol}^{-1}$$
4
MHT CET 2023 11th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is the number of unit cells present in a cubic pack crystal lattice having 4 atoms per unit cell and weighing $$0.60 \mathrm{~g}$$ (molar mass $$\left.60 \mathrm{~g} \mathrm{~mol}^{-1}\right)$$ ?

A
$$1 \times 10^{21}$$
B
$$1.5 \times 10^{21}$$
C
$$3.0 \times 10^{21}$$
D
$$6.0 \times 10^{21}$$
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