Solid State Test

Result

Solid State Test - 2

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1

1 / -0

Match the following:

Column – I	Column – II
(A) Schottky defect	(a) Presence of ion in the normally vacant interstitial sites
(B) Frenkel defect	(b) Silicon doped with phosphorus
(C) Interstitial defect	(c) Ion leaves its correct lattice site and occupies an interstitial site
(D) Extrinsic conduction	(d) One positive ion and one negative ion displace from their positions, leaving behind a pair of holes

(A) – (d), (B) – (c), (C) – (a), (D) – (b)

(A) – (c), (B) – (a), (C) – (b), (D) – (d)

(A) – (a), (B) – (d), (C) – (b), (D) – (c)

(A) – (b), (B) – (d), (C) – (c), (D) – (a)

Question 2
1 / -0

A compound formed by elements A and B crystallises in cubic structure, in which A atoms are at the corners of the cube, while B atoms are at the face centres of the cube. What is the formula of the compound?

A
A₂B₃

B
AB₂

C
AB₃

D
AB
Question 3
1 / -0

Which of the following crystal systems has three unequal axes at right angles to each other?

A
Cubic

B
Orthorhombic

C
Tetragonal

D
Monoclinic
Question 4
1 / -0

A solid is formed and it has three types of atoms X, Y and Z. X forms an fcc lattice with Y atoms, occupying all the tetrahedral voids and Z atoms occupy half the octahedral voids. The formula of the solid is

A
X₂Y₄Z

B
XY₂Z₄

C
X₄Y₂Z

D
X₄YZ₂
Question 5
1 / -0

In which of the following ionic solids is the coordination number of each of the ions 4?

A
NaCl

B
ZnS

C
CsCl

D
CaF₂
Question 6
1 / -0

Potassium crystallises in a body-centered cubic lattice with unit cell length a = 5.20 Å.

Which of the following statements is wrong?

A
The distance between the nearest neighbours is 4.50 Å.

B
The distance between the next nearest neighbours is 5.20 Å.

C
Potassium has 8 nearest neighbours.

D
Potassium has 8 next nearest neighbours.
Question 7
1 / -0

Which of the following defects does ZnS show?

A
Frenkel defect

B
Schottky defect

C
Interstitial defect

D
Valency defect
Question 8
1 / -0

Which of the following substances is/are diamagnetic?

A
O₂

B
NaCl

C
Fe

D
Ni and Co
Question 9
1 / -0

Which among the following is not true for crystalline solid?

A
They are also called true solids

B
They have sharp melting point

C
They do not show long range order

D
They show anisotropy

Solution

Crystalline solids have regular pattern of arrangement of particles (atoms, molecules or ions) which repeat itself periodically over the entire crystal which means they have long range orders.
Question 10
1 / -0

In which of the following cubic lattices are the points present at all the corners as well as at the centre of the cube?

A
Simple or primitive

B
Body-centered cubic

C
Face-centered cubic

D
None of these
Question 11
1 / -0

How many tetrahedral voids can exist per unit cell in hexagonal close packing sphere?

A
8

B
24

C
12

D
18

Solution

For hcp packing Z(no. of atoms per unit cell is 6) and no. of Td voids are 2Z (2 × 6=12).
Question 12
1 / -0

The zinc blende (ZnS) structure is cubic. The unit cell may be described as a face-centred sulphide ion sublattice with zinc ions in the centre of alternating minicubes made by partitioning the main cube into 8 equal parts.

How many nearest neighbours does Zn²⁺ ion have?

A
4

B
6

C
8

D
3
Question 13
1 / -0

The following question has four choices out of which ONLY ONE is correct.

The number of formula units of NaCl in the unit cell is

A
1

B
2

C
3

D
4
Question 14
1 / -0

The general formula of an ionic compound crystallising in body-centred cubic structure is

A
AB

B
AB₂

C
A₂B

D
AB₃
Question 15
1 / -0

Which of the following best describes the reason for flame colours of metal ions?

A
Frenkel defect

B
Schottky defect

C
Metal deficiency defect

D
Metal excess defect

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Solid State Test - 2

Result

Solid State Test - 2

Score

-

Rank

-

SHARING IS CARING

Question 1

(A) – (d), (B) – (c), (C) – (a), (D) – (b)

(A) – (c), (B) – (a), (C) – (b), (D) – (d)

(A) – (a), (B) – (d), (C) – (b), (D) – (c)

(A) – (b), (B) – (d), (C) – (c), (D) – (a)

Question 2

A2B3

AB2

AB3

AB

Question 3

Cubic

Orthorhombic

Tetragonal

Monoclinic

Question 4

X2Y4Z

XY2Z4

X4Y2Z

X4YZ2

Question 5

NaCl

ZnS

CsCl

CaF2

Question 6

The distance between the nearest neighbours is 4.50 Å.

The distance between the next nearest neighbours is 5.20 Å.

Potassium has 8 nearest neighbours.

Potassium has 8 next nearest neighbours.

Question 7

Frenkel defect

Schottky defect

Interstitial defect

Valency defect

Question 8

O2

NaCl

Fe

Ni and Co

Question 9

They are also called true solids

They have sharp melting point

They do not show long range order

They show anisotropy

Solution

Question 10

Simple or primitive

Body-centered cubic

Face-centered cubic

None of these

Question 11

8

24

12

18

Solution

Question 12

4

6

8

3

Question 13

1

2

3

4

Question 14

AB

AB2

A2B

AB3

A₂B₃

AB₂

AB₃

X₂Y₄Z

XY₂Z₄

X₄Y₂Z

X₄YZ₂

CaF₂

O₂

AB₂

A₂B

AB₃