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Solid State

69 Questions Start JEE Mains Test
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2019 Q51 JEE Mains MCQ
14 Mar 2026
At 100oC, copper (Cu) has FCC unit cell structure with cell edge length of x $\mathop A\limits^o $. What is the approximate density of Cu (in g cm$-$3) at this temperature?
[Atomic Mass of Cu = 63.55 u]
A.
${{205} \over {{x^3}}}$
B.
${{105} \over {{x^3}}}$
C.
${{211} \over {{x^3}}}$
D.
${{422} \over {{x^3}}}$
2018 Q52 JEE Mains MCQ
14 Mar 2026
Which type of ‘defect’ has the presence of cations in the interstitial sites?
A.
Metal deficiency defect
B.
Schottky defect
C.
Vacancy defect
D.
Frenkel defect
2018 Q53 JEE Mains MCQ
14 Mar 2026
All of the following share the same crystal structure except :
A.
LiCl
B.
NaCl
C.
RbCl
D.
CsCl
2018 Q54 JEE Mains MCQ
14 Mar 2026
Which of the following arrangements shows the schematic alignment of magnetic moments of antiferromagnetic substance ?
A.
JEE Main 2018 (Online) 15th April Morning Slot Chemistry - Solid State Question 53 English Option 1
B.
JEE Main 2018 (Online) 15th April Morning Slot Chemistry - Solid State Question 53 English Option 2
C.
JEE Main 2018 (Online) 15th April Morning Slot Chemistry - Solid State Question 53 English Option 3
D.
JEE Main 2018 (Online) 15th April Morning Slot Chemistry - Solid State Question 53 English Option 4
2017 Q55 JEE Mains MCQ
14 Mar 2026
A metal crystallises in a face centred cubic structure. If the edge length of its unit cell is ‘a’, the closest approach between two atoms in metallic crystal will be :
A.
$2\sqrt 2 a$
B.
$\sqrt 2 a$
C.
${a \over {\sqrt 2 }}$
D.
2a
2015 Q56 JEE Mains MCQ
14 Mar 2026
Sodium metal crystallizes in a body centred cubic lattice with a unit cell edge of 4.29 Å . The radius of sodium atom is approximately :
A.
5.72 Å
B.
0.93 Å
C.
1.86 Å
D.
3.22 Å
2014 Q57 JEE Mains MCQ
14 Mar 2026
CsCl crystallises in body centred cubic lattice. If ‘a’ is its edge length then which of the following expressions is correct?
A.
${r_{C{s^ + }}} + {r_{C{l^ - }}} = {{\sqrt 3 } \over 2}a$
B.
${r_{C{s^ + }}} + {r_{C{l^ - }}} = {3 \over 2}a$
C.
${r_{C{s^ + }}} + {r_{C{l^ - }}} = \sqrt 3 a$
D.
${r_{C{s^ + }}} + {r_{C{l^ - }}} = 3a$
2013 Q58 JEE Mains MCQ
14 Mar 2026
Which of the following exists as covalent crystals in the solid state?
A.
Silicon
B.
Sulphur
C.
Phosphorous
D.
Iodine
2012 Q59 JEE Mains MCQ
14 Mar 2026
Lithium forms body centred cubic structure. The length of the side of its unit cell is 351 pm. Atomic radius of the lithium will be :
A.
75 pm
B.
300 pm
C.
240 pm
D.
152 pm
2011 Q60 JEE Mains MCQ
14 Mar 2026
In a face centred cubic lattice, atom A occupies the corner positions and atom B occupies the face centre positions. If one atom of B is missing from one of the face centred points, the formula of the compound is :
A.
AB2
B.
A2B3
C.
A2B5
D.
A2B
2010 Q61 JEE Mains MCQ
14 Mar 2026
Percentages of free space in cubic close packed structure and in body centred packed structure are respectively :
A.
30% and 26%
B.
26% and 32%
C.
32% and 48%
D.
48% and 26%
2010 Q62 JEE Mains MCQ
14 Mar 2026
The edge length of a face centered cubic cell of an ionic substance is 508 pm. If the radius of the cation is 110 pm, the radius of the anion is :
A.
288 pm
B.
398 pm
C.
618 pm
D.
144 pm
2009 Q63 JEE Mains MCQ
14 Mar 2026
Copper crystallizes in fcc with a unit cell length of 361 pm. What is the radius of copper atom?
A.
108 pm
B.
127 pm
C.
157 pm
D.
181 pm
2008 Q64 JEE Mains MCQ
14 Mar 2026
In a compound atoms of element Y from ccp lattice and those of element X occupy 2/3rd of tetrahedral voids. The formula of the compound will be :
A.
X4Y3
B.
X2Y3
C.
X2Y
D.
X3Y4
2006 Q65 JEE Mains MCQ
14 Mar 2026
Total volume of atoms present in a face-centre cubic unit cell of a metal is (r is atomic radius) :
A.
20/3 $\pi r^3$
B.
24/3 $\pi r^3$
C.
16/3 $\pi r^3$
D.
12/3 $\pi r^3$
2005 Q66 JEE Mains MCQ
14 Mar 2026
An ionic compound has a unit cell consisting of A ions at the corners of a cube and B ions on the centres of the faces of the cube. The empirical formula for this compound would be :
A.
AB
B.
A2B
C.
AB3
D.
A3B
2004 Q67 JEE Mains MCQ
14 Mar 2026
What type of crystal defect is indicated in the diagram below?

AIEEE 2004 Chemistry - Solid State Question 54 English
A.
Interstitial defect
B.
Schottky defect
C.
Frenkel defect
D.
Frenkel and Schottky defects
2003 Q68 JEE Mains MCQ
14 Mar 2026
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
2002 Q69 JEE Mains MCQ
14 Mar 2026
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