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1
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify the type of unit cell that has particles at the centre of each face in addition to the particles at eight corners of a cube?

A
Face centred cubic unit cell
B
Hexagonal unit cell
C
Simple cubic unit cell
D
Body centred cubic unit cell
2
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

How many atoms of niobium are present in $$2.43 \mathrm{~g}$$ if it forms bcc structure with density $$9 \mathrm{~g} \mathrm{~cm}^{-3}$$ and volume of unit cell $$2.7 \times 10^{-23} \mathrm{~cm}^3$$ ?

A
$$3.01 \times 10^{23}$$
B
$$4.1 \times 10^{22}$$
C
$$5.0 \times 10^{22}$$
D
$$2.0 \times 10^{22}$$
3
MHT CET 2021 22th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

How many tetrahedral voids are present in 0.4 mole of a compound that forms hcp structure?

A
$$4.8 \times 10^{23}$$
B
$$3.011 \times 10^{23}$$
C
$$1.2 \times 10^{23}$$
D
$$2.4 \times 10^{23}$$
4
MHT CET 2021 21th September Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the total number of atoms in BCC crystal lattice having $$1.8 \times 10^{20}$$ unit cells?

A
$$9.0 \times 10^{20}$$
B
$$1.8 \times 10^{20}$$
C
$$3.6 \times 10^{20}$$
D
$$7.2 \times 10^{20}$$
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