Solid State  MCQs

MCQs of Solid State

Showing 71 to 80 out of 151 Questions
5 6 7 8 9 10
71.
Ferromagnetism is maximum in _____ .
(a) Fe
(b) Ni
(c) Co
(d) All of these
Answer:

Option (d)

72.
Edge length of a cube is 400 pm, its body diagonal would be of _____ .
(a) 566 pm
(b) 600 pm
(c) 500 pm
(d) 693 pm
Answer:

Option (d)

73.
In cubic solid, all axial angles are ______.
(a) α = 90°, β = 90°, γ = 120°
(b) α = β = γ = 90°
(c) α = β = γ ≠ 90°
(d) α ≠ β ≠ γ ≠ 90°
Answer:

Option (b)

74.
Which is the example of hcp ?
(a) Graphite
(b) ZnO
(c) CdS
(d) All of these
Answer:

Option (d)

75.
In cinnabar, the axial angle α, β and γ are _____ receptively.
(a) 90°, 90°, 120°
(b) 90°, 90°,≠120°
(c) ≠90°, ≠90°,≠90°
(d) All of these
Answer:

Option (c)

76.
In a simple cubic lattice the packing efficiency is _____.
(a) 40%
(b) 52.36%
(c) 60%
(d) 80%
Answer:

Option (b)

77.
The packing efficiency in hcp is _____
(a) 80%
(b) 74%
(c) 54%
(d) 60%
Answer:

Option (b)

78.
In two dimensional close packing, the co-ordination number of the arrangement AAA _____ is
(a) 2
(b) 4
(c) 6
(d) 8
Answer:

Option (b)

79.
The stacking pattern in ccp arrangement is _____
(a) ABC ABC ABC...
(b) AB AB AB...
(c) AA AA AA...
(d) None of these
Answer:

Option (a)

80.
If ccp or fcc is divided in to eight small cubes, then the number of tetrahedrons (void) formed in each small cube is _____
(a) 1
(b) 2
(c) 3
(d) 8
Answer:

Option (a)

Showing 71 to 80 out of 151 Questions
5 6 7 8 9 10