Solid State  MCQs

MCQs of Solid State

Showing 11 to 20 out of 151 Questions
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11.
Which of the following compounds shows metal deficiency defect ?
(a) Fe0.95O
(b) Fe2O3.6
(c) Fe3O4
(d) FeS1.6
Answer:

Option (a)

12.
Which of the following elements is a semiconductor ?
(a) Na
(b) Al
(c) Fe
(d) Ge
Answer:

Option (d)

13.
Which type of semiconductor is obtained by doping Si with Bi ?
(a) n-type
(b) p-type
(c) pnp-type
(d) npn-type
Answer:

Option (a)

14.
With which element, the conductivity of ReO3 is matching ?
(a) Copper
(b) Zinc
(c) Iron
(d) Aluminium
Answer:

Option (a)

15.
Which of the following will be paramagnetic ?
(a) O22-
(b) Cr3+
(c) Na+
(d) Cu+
Answer:

Option (b)

16.
Which theory is useful in explaining electrical conductivity in conductors and semiconductors ?
(a) Pauli's principle
(b) Avogadro's theory
(c) band theory
(d) Hybridisation theory
Answer:

Option (c)

17.
_____ of the following is a crystalline solid.
(a) Glass
(b) Rubber
(c) Plastic
(d) Sugar
Answer:

Option (d)

18.
Which of the following is an example of a covalent solid ?
(a) Silicon
(b) Sulphur
(c) Phosphorus
(d) Iodine
Answer:

Option (a)

19.
Select the non-conductor substance from the following.
(a) NaCl
(b) P4
(c) Cr
(d) KNO3
Answer:

Option (b)

20.
Select highest electrical conductor and thermal conductor from the following.
(a) Si
(b) Li
(c) NaCl
(d) Ice
Answer:

Option (b)

Showing 11 to 20 out of 151 Questions
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