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MHT CET 2020 19th October Evening Shift
MCQ (Single Correct Answer)
+1
-0

What is the percentage of unoccupied space in fcc unit cell?

A
$74 \%$
B
$68 \%$
C
$32 \%$
D
$26 \%$
2
MHT CET 2020 19th October Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which among the following crystal lattices occupies all of the cubic holes by cations?

A
$\mathrm{UO}_2$
B
$\mathrm{CsCl}$
C
$\mathrm{CaF}_2$
D
$\mathrm{SrCl}_2$
3
MHT CET 2020 16th October Evening Shift
MCQ (Single Correct Answer)
+1
-0

Silver crystallises in fcc structure, if edge length of unit cell is 316.5 pm . What is the radius of silver atom?

A
121.91 pm
B
111.91 pm
C
137.04 pm
D
158.25 pm
4
MHT CET 2020 16th October Evening Shift
MCQ (Single Correct Answer)
+1
-0

An element crystallises in a bcc lattice with cell edge of 500 pm. The density of the element is $$7.5 \mathrm{~g} \mathrm{~cm}^{-3}$$. How many atoms are present in 300 g of metal?

A
$$6.4 \times 10^{23}$$ atoms
B
$$12.8 \times 10^{23}$$ atoms
C
$$3.2 \times 10^{23}$$ atoms
D
$$1.6 \times 10^{23}$$ atoms
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