1
MHT CET 2022 11th August Evening Shift
+1
-0

Calculate the density of metal having volume of unit cell $$64 \times 10^{-24} \mathrm{~cm}^3$$ and molar mass of metal $$192 \mathrm{~g} \mathrm{~mol}^{-1}$$ containing 4 particles in unit cell.

A
$$14.92 \mathrm{~g} \mathrm{~cm}^{-3}$$
B
$$16.00 \mathrm{~g} \mathrm{~cm}^{-3}$$
C
$$19.93 \mathrm{~g} \mathrm{~cm}^{-3}$$
D
$$18.00 \mathrm{~g} \mathrm{~cm}^{-3}$$
2
MHT CET 2022 11th August Evening Shift
+1
-0

Calculate the number of atoms in 5 gram metal that crystallises to form simple cubic unit cell structure having edge length $$336 \mathrm{~pm}$$. (Density of metal $$=9.4 \mathrm{~g} \mathrm{~cm}^{-3}$$ )

A
$$1.0 \times 10^{22}$$
B
$$2.1 \times 10^{22}$$
C
$$1.4 \times 10^{22}$$
D
$$1.8 \times 10^{22}$$
3
MHT CET 2021 24th September Evening Shift
+1
-0

The density of chromium metal is 7 g cm$$^{-3}$$. If edge length of unit cell is 300 pm, identify the type of unit cell. (At mass Cr = 52)

A
Body centred cubic
B
Simple cubic
C
Hexagonal close pack
D
Face centred cubic
4
MHT CET 2021 24th September Evening Shift
+1
-0

An element has $$\mathrm{BCC}$$ structure with edge length of unit cell $$600 \mathrm{~pm}$$. What is the atomic radius of element?

A
$$\sqrt{3} \times 150 \mathrm{~pm}$$
B
$$150 \mathrm{~pm}$$
C
$$300 \mathrm{~pm}$$
D
$$\frac{300}{\sqrt{2}} \mathrm{~pm}$$
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Medical
NEET