1
AIEEE 2010
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Percentages of free space in cubic close packed structure and in body centred packed structure are respectively :
A
30% and 26%
B
26% and 32%
C
32% and 48%
D
48% and 26%
2
AIEEE 2009
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Copper crystallizes in fcc with a unit cell length of 361 pm. What is the radius of copper atom?
A
108 pm
B
127 pm
C
157 pm
D
181 pm
3
AIEEE 2008
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
In a compound atoms of element Y from ccp lattice and those of element X occupy 2/3rd of tetrahedral voids. The formula of the compound will be :
A
X4Y3
B
X2Y3
C
X2Y
D
X3Y4
4
AIEEE 2006
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Total volume of atoms present in a face-centre cubic unit cell of a metal is (r is atomic radius) :
A
20/3 $$\pi r^3$$
B
24/3 $$\pi r^3$$
C
16/3 $$\pi r^3$$
D
12/3 $$\pi r^3$$
Questions Asked from MCQ (Single Correct Answer)
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