This chapter is currently out of syllabus
1
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The ionic radii of A+ and B$$-$$ ions are 0.98 $$ \times $$ 10$$-$$10 m and 1.81 $$ \times $$ 10$$-$$10 m. The coordination number of each ion in AB is
A
8
B
2
C
6
D
4
2
NEET 2016 Phase 1
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Lithium has a bcc structure. Its density is 530 kg m$$-$$3 and its atomic mass is 6.94 g mol$$-$$. Calculate the edge length of a unit cell of lithium metal. (NA = 6.02 $$ \times $$ 1023 mol$$-$$1)
A
527 pm
B
264 pm
C
154 pm
D
352 pm
3
AIPMT 2015
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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.
4
AIPMT 2015
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The vacant space in bcc lattice unit cell is
A
48%
B
23%
C
32%
D
26%
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