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Crsytal Lattice
Test Description: A quiz on #crystalline #structure
Instructions: Answer all questions to get your test result.
1) Lattice points have another name which is called
A
lattice arrangements
B
lattice array
C
lattice sites
D
lattice circles
2) In crystal lattice ions are arranged in
A
three dimensions
B
single dimension
C
two dimensions
D
four dimensions
3) Points which shows position of atoms in a crystal are called
A
lattice arrangements
B
lattice points
C
lattice circles
D
lattice lines
4) Crystal lattice is actually
A
sum of points
B
triangle of points
C
lines of points
D
array of points
5) Crystal lattice is also known as
A
space lattice
B
lattice line
C
lattice triangle
D
lattice array
6) Electron sea exists in
A
Polar bonds
B
Metallic bond
C
Covalent bond
D
Ionic bond
7) Repeatable entity of a crystal structure is known as
A
Crystal
B
Miller indices
C
Unit cell
D
Lattice
8) Coordination number for closest packed crystal structure
A
8
B
4
C
16
D
12
9) Coordination number in simple cubic crystal structure
A
2
B
1
C
3
D
4
10) Co-ordination number of a crystalline solid is:
A
Number of particles in the unit cell
B
Number of nearest neighbours of a particle
C
Number of tetrahedral voids in a unit cell
D
Number of octahedral voids in a unit cell
11) ABC ABC arrangement is actually
A
hexagonal closed packing
B
cubic open packing
C
hexagonal open packing
D
cubic close packing
12) Which of the following is a crystalline solid?
A
Copper wire
B
Glass bottle
C
Rubber ball
D
Polythene bag
13) The number of Na, ions which surround each CI1-ion the NaCI crystal lattice is
A
8
B
12
C
6
D
4
14) When water freezes at 0°C, its density decreases due to
A
change of bond angles
B
empty spaces present in structure of ice
C
change of bond lengths
D
cubic structure of ice
15) How many allotropic forms are present in carbon
A
4
B
5
C
2
D
3
16) NaCI is face centered cubic structure. The Na ion at the face of the unit cell is shared by
A
8 unit cells
B
4 unit cells
C
1 unit cell
D
2 unit cells
17) Diamond is a bad conductor of electricity because
A
it has a tight structure
B
there are no free electrons present in the diamond crystal to conduct electricity
C
it has a high density
D
none of these
18) Most Bravais lattices are of the type:
A
End centered unit cell
B
Primitive unit cell
C
Face centered unit cell
D
Body centered unit cell
19) Graphite is a common allotrope of Carbon. Its crystal structure is:
A
Orthorhombic
B
Cubic
C
monoclinic
D
hexagonal
20) Which of the following lattices has the highest void fraction?
A
Hexagonal close packed
B
Primitive cubic
C
Body centered cubic
D
Face centered cubic
*select an answer for all questions
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