This chapter is currently out of syllabus
1
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0
Out of Syllabus

The vacant space in bcc lattice cell is

A
26%
B
48%
C
23%
D
32%
2
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0
Out of Syllabus

Graphite is a soft solid lubricant extremely difficult to melt. The reason for this anomalous behaviour is that, graphite

A
has molecules of variable molecular masses like polymers.
B
has carbon atoms arranged in large plates of rings of strongly bound carbon atoms with weak interplate bonds.
C
is a non-crystalline substance.
D
is an allotropic form of carbon.
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