This chapter is currently out of syllabus
1
AIPMT 2015
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The correct statement regarding defects in crystalline solids is
A
Frenkel defects decrease the density of crystalline solids
B
Frenkel defect is a dislocation defect
C
Frenkel defect is found in halides of alkaline metals
D
Schottky defects have no effect on the density of crystalline solids.
2
AIPMT 2015 Cancelled Paper
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
A given metal crystallises out with a cubic structure having edge length of 361 pm. If there are four metal atoms in one unit cell, what is the radius of one atom?
A
80 pm
B
108 pm
C
40 pm
D
127 pm
3
AIPMT 2014
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
If $$a$$ is the length of the side of a cube, the distance between the body centered atom and one corner atom in the cube will be
A
$${2 \over {\sqrt 3 }}a$$
B
$${4 \over {\sqrt 3 }}a$$
C
$${{\sqrt 3 } \over 4}a$$
D
$${{\sqrt 3 } \over 2}a$$
4
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
A metal has a fcc lattice. The edge length of the unit cell is 404 pm. The density of the metal is 2.72 g cm$$-$$3. The molar mass of the metal is
(NA Avogadro's constant = 6.02 $$ \times $$ 1023 mol$$-$$1)
A
27 g mol$$-$$1
B
20 g mol$$-$$1
C
40 g mol$$-$$1
D
30 g mol$$-$$1
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