This chapter is currently out of syllabus
1
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
A compound formed by elements X and Y crystallizes in a cubic structure in which the X atoms are at the corners of a cube and the Y atoms are at the face-centers. The formula of the compound is :-
A
XY3
B
X3Y
C
XY
D
XY2
2
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
The pyknometric density of sodium chloride crystal is 2.165 $$ \times $$ 103 kg m$$-$$3 while its X-ray density is 2.178 $$ \times $$ 103 kg m$$-$$3. The fraction of unoccupied sites in sodium chloride crystal is
A
5.96
B
5.96 $$ \times $$ 10$$-$$2
C
5.96 $$ \times $$ 10$$-$$1
D
5.96 $$ \times $$ 10$$-$$3
3
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
When Zn converts from melted state to its solid state, it has hcp structure, then find the number of nearest atoms.
A
6
B
8
C
12
D
4
4
AIPMT 2000
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
In cube of any crystal A-atom placed at every corners and B-atom placed at every centre of face. The formula of compound is
A
AB
B
AB3
C
A2B2
D
A2B3
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