Solid State Test

Question 1
1 / -0

In which of the following structures coordination number for cations and anions in the packed structure will be same?

A
\(Cl^–\) ion form fcc lattice and \(Na^+\) ions occupy all octahedral voids of the unit cell.

B
\(Ca^{2+}\) ions form fcc lattice and \(F^-\) ions occupy all the eight tetrahedral voids of the unit cell.

C
\(O^- _{2}\) ions form fcc lattice and \(Na^+\) ions occupy all the eight tetrahedral voids of the unit cell.

D
\(S^{2-}\) ions form fcc lattice and \(Zn^{2+}\) ions go into alternate tetrahedral voids of the unit cell.

Question 2
1 / -0

What is the coordination number in a square close packed structure in two dimensions?

A
2

B
3

C
4

D
6

Question 3
1 / -0

Which kind of defects are introduced by doping?

A
Dislocation defect

B
Schottky defect

C
Frenkel defects

D
Electronic defects

Question 4
1 / -0

Silicon doped with electron-rich impurity forms ........

A
p-type semiconductor

B
n-type semiconductor

C
Intrinsic semiconductor

D
Insulator

Question 5
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Which of the following statements is not true?

A
Paramagnetic substances are weakly attracted by magnetic field.

B
Ferromagnetic substances cannot be magnetised permanently.

C
The domains in antiferromagnetic substances are oppositely oriented with respect to each other.

D
Pairing of electrons cancels their magnetic moment in the diamagnetic substances.

Question 6
1 / -0

Which of the following statements are correct?

(i) Ferrimagnetic substances lose ferrimagnetism on heating and become paramagnetic.

(ii) Ferrimagnetic substances do not lose ferrimagnetism on heating and remain ferrimagnetic.

(iii) Antiferromagnetic substances have domain structures similar to ferromagnetic substances and their magnetic moments are not cancelled by each other.

(iv) In ferromagnetic substances all the domains get oriented in the direction of magnetic field and remain as such even after removing magnetic field.

A
(i) and (iv)

B
(i) and (ii)

C
(i) and (iii)

D
(ii) and (iii)

Question 7
1 / -0

Which of the following features are not shown by quartz glass?

(i) This is a crystalline solid.

(ii) Refractive index is same in all the directions.

(iii) This has definite heat of fusion.

(iv) This is also called super cooled liquid.

A
(i) and (iii)

B
(i) and (ii)

C
(iii) and (ii)

D
(iii) and (iv)

Question 8
1 / -0

Which of the following cannot be regarded as molecular solid?

(i) SiC (Silicon carbide)

(ii) AlN

(iii) Diamond

(iv) \( I_2\)

A
(i), (ii) and (iii)

B
(i), (ii) and (iv)

C
(i), (iii) and (iv)

D
(iii), (ii) and (iv)

Question 9
1 / -0

Frenkel defect is also known as ..............

(i) stoichiometric defect

(ii) dislocation defect

(iii) impurity defect

(iv) non-stoichiometric defect

A
(i) and (ii)

B
(ii) and (iii)

C
(iv) and (iii)

D
(iv) and (i)

Submit Test

Solid State Tes...

Question 1

\(Cl^–\) ion form fcc lattice and \(Na^+\) ions occupy all octahedral voids of the unit cell.

\(Ca^{2+}\) ions form fcc lattice and \(F^-\) ions occupy all the eight tetrahedral voids of the unit cell.

\(O^- _{2}\) ions form fcc lattice and \(Na^+\) ions occupy all the eight tetrahedral voids of the unit cell.

\(S^{2-}\) ions form fcc lattice and \(Zn^{2+}\) ions go into alternate tetrahedral voids of the unit cell.

Question 2

2

3

4

6

Question 3

Dislocation defect

Schottky defect

Frenkel defects

Electronic defects

Question 4

p-type semiconductor

n-type semiconductor

Intrinsic semiconductor

Insulator

Question 5

Paramagnetic substances are weakly attracted by magnetic field.

Ferromagnetic substances cannot be magnetised permanently.

The domains in antiferromagnetic substances are oppositely oriented with respect to each other.

Pairing of electrons cancels their magnetic moment in the diamagnetic substances.

Question 6

(i) and (iv)

(i) and (ii)

(i) and (iii)

(ii) and (iii)

Question 7

(i) and (iii)

(i) and (ii)

(iii) and (ii)

(iii) and (iv)

Question 8

(i), (ii) and (iii)

(i), (ii) and (iv)

(i), (iii) and (iv)

(iii), (ii) and (iv)

Question 9

(i) and (ii)

(ii) and (iii)

(iv) and (iii)

(iv) and (i)

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