Solid State Test

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Solid State Test - 1

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Weekly Quiz Competition

Question 1
1 / -0

Which among the following is not an example of amorphous solids?

A
Coke

B
Quartz

C
Glass

D
Plastic

Solution

Explanation:

Quartz is not amorphous solids
Question 2
1 / -0

Amorphous solids are also known as

A
True solids

B
Pseudo solids

C
Poly crystalline solids

D
None of these

Solution

Explanation:

Because they show property of flowing like liquids
Question 3
1 / -0

Which among the following is not true for crystalline solid?

A
They have sharp melting point

B
They show anisotropy

C
They are also called true solids

D
They do not show long range order

Solution

Explanation:

In Crystalline solids , the atomic pattern repeats itself after long distance. Therefore they have long range orders.
Question 4
1 / -0

Which among the following is an example of network solid?

A
CS₂

B
C

C
KF

D
H₂O

Solution

Explanation:

Carbon is network solid due to its tendency to form Catination.
Question 5
1 / -0

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

A
12

B
8

C
24

D
18

Solution

Explanation:

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

Example of ferromagnetic substance is

A
NaCl

B
KMnO₄

C
Co

D
Fe₃O₄

Solution

Explanation:

This is a Fact
Question 7
1 / -0

Coordination number of hcp and ccp is

A
6

B
2

C
4

D
12

Solution

Explanation:

In hcp and ccp lattice, each atom is surrounded by 12 other atoms . Therefore, hcp and ccp lattice have ccordination no. 12.
Question 8
1 / -0

Brass is an example of

A
molecular crystal

B
ionic crystal

C
covalent crystal

D
Metallic crystal

Solution

Explanation:

Brass is Mettalic Crystal
Question 9
1 / -0

What is the total number of atoms per unit cell in a face centered cubic structure?

A
1

B
6

C
2

D
4

Solution

Explanation:

In Fcc each atom at corner contributes 1 per unit cell while atoms at face centers contribute 3 to each unit cell. So Total no of atoms per unit cell is 4
Question 10
1 / -0

The number of atoms per unit cell in a body centered cubic structure is

A
4

B
1

C
6

D
2

Solution

Explanation:

Atoms at corner contribute 1 to a unit cell and one atom is present in body center contribute 1. So total no. of atoms per unit cell is 2.

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Re-Attempt Weekly Quiz Competition

Solid State Test - 1

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Solid State Test - 1

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Question 1

Coke

Quartz

Glass

Plastic

Solution

Question 2

True solids

Pseudo solids

Poly crystalline solids

None of these

Solution

Question 3

They have sharp melting point

They show anisotropy

They are also called true solids

They do not show long range order

Solution

Question 4

CS2

C

KF

H2O

Solution

Question 5

12

8

24

18

Solution

Question 6

NaCl

KMnO4

Co

Fe3O4

Solution

Question 7

6

2

4

12

Solution

Question 8

molecular crystal

ionic crystal

covalent crystal

Metallic crystal

Solution

Question 9

1

6

2

4

Solution

Question 10

4

1

6

2

Solution

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CS₂

H₂O

KMnO₄

Fe₃O₄