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

What is the number of octahedral and tetrahedral voids presents respectively in 0.25 mole of a substance having hcp structure?

A
$$3.011 \times 10^{23}, 1.50 \times 10^{23}$$
B
$$6.011 \times 10^{23}, 3.011 \times 10^{23}$$
C
$$3.011 \times 10^{23}, 6.022 \times 10^{23}$$
D
$$1.50 \times 10^{23}, 3.011 \times 10^{23}$$
2
MHT CET 2021 22th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is the molar mass of a metal having density 8.57 g cm$$^{-3}$$ and edge length 3.3 $$\mathop A\limits^o $$ ? (packing efficiency = 68%)

A
63 g mol$$^{-1}$$
B
93 g mol$$^{-1}$$
C
29 g mol$$^{-1}$$
D
39 g mol$$^{-1}$$
3
MHT CET 2021 22th September Morning Shift
MCQ (Single Correct Answer)
+1
-0

How many lattice points are present in a face centred cubic unit cell?

A
8
B
17
C
14
D
9
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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