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