This chapter is currently out of syllabus
1
AIEEE 2003
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
How many unit cells are present in a cubeshaped ideal crystal of NaCl of mass 1.00 g? [Atomic masses: Na = 23, Cl = 35.5]
A
5.14 $$\times$$ 1021 unit cells
B
1.28 $$\times$$ 1021 unit cells
C
1.71 $$\times$$ 1021 unit cells
D
2.57 $$\times$$ 1021 unit cells
2
AIEEE 2002
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
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Na and Mg crystallize in BCC and FCC type crystals respectively, then the number of atoms of Na and Mg present in the unit cell of their respective crystal is :
A
4 and 2
B
9 and 14
C
14 and 9
D
2 and 4
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