wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

XII CHEMISTRY SOLID STATE

Total questions: 40

Worksheet time: 21mins

Name
Class
Date
1.

The number of atoms per unit cell in simple, fcc and bcc unit cells are

a)

1, 4, 2

b)

1, 2, 4

c)

2, 1, 4

d)

2, 4, 1

2.

In 3D close packing the ABCABCABC.....pattern gives rise to which type of close packing?

a)

Hexagonal Close Packing (hcp)

b)

Cubic Close Packing (ccp)

c)

Face Centred Cubic Packing (fcc)

d)

Both ccp and fcc

3.

The packing efficiency in simple, fcc, bcc unit cells will be respectively

a)

74% 52.4% 68%

b)

52.4% 68% 74%

c)

68% 74% 52.4%

d)

52.4% 74% 68%

4.

The relationship between the atomic radius (r) and edge length (a) of a simple, fcc, bcc cubic unit cell will be respectively

a)

a2\frac{a}{2} 2a4\frac{\sqrt{2}a}{4} 3a4\frac{\sqrt{3}a}{4}

b)

a2\frac{a}{2} 3a4\frac{\sqrt{3}a}{4} 2a4\frac{\sqrt{2}a}{4}

c)

2a4\frac{\sqrt{2}a}{4} 3a4\frac{\sqrt{3}a}{4} a2\frac{a}{2}

d)

3a4\frac{\sqrt{3}a}{4} a2\frac{a}{2} 3a4\frac{\sqrt{3}a}{4}

5.

The coordination number in simple, fcc, bcc close packing arrangement will be respectively

a)

1, 4, 2

b)

6, 12, 8

c)

4, 6, 8

d)

none of the above

6.

The total number of tetrahedral voids and octahedral voids in a given cubic unit cell with N number of atoms will be respectively

a)

2N and N

b)

N and 2N

c)

4N and N

d)

N and 4N

7.

What type of material is this one?

a)

Crystal

b)

Amorphous

c)

Covalent Crystal

d)

Ionic Crystal

8.

What is the coordination number in the FCC structure?

a)

24

b)

12

c)

8

d)

4

9.

In METAL EXCESS DEFECTS the sites where an electron gets trapped in the anionic vacancy disturbing the ratio of cation to anion is known as

a)

E- CENTRE

b)

F- CENTRE

c)

G- CENTRE

d)

I- CENTRE

10.

Which of the following is not a characteristic of a crystalline solid?

a)

Definite and characteristic heat of fusion.

b)

Long range order or perfect arrangement of constituent particles

c)

Isotropic in nature

d)

clean cleavage or smooth edges on cutting with a knife

11.

Which of the following is an amorphous solid?

a)

Copper(Cu)

b)

Quartz glass (SiO2)

c)

Silicon carbide (SiC)

d)

Sodium Chloride (NaCl)

12.

Which of the following is a network solid or covalent crystalline solid?

a)

Diamond (C)

b)

H2O (Ice)

c)

Calcium Fluoride (CaF2)

d)

Iron Metal (Fe)

13.

What is the smallest repetitive unit of the crystal / lattice structure known as?

a)

Atom

b)

Molecule

c)

Lattice Point

d)

Unit Cell

14.

The total number of tetrahedral voids and octahedral voids per unit cell of face-centred cell (fcc) are

a)

8, 4

b)

4, 8

c)

2, 4

d)

4, 2

15.

Which of the following is a network solid?

a)

SO2(Solid)

b)

I2(Solid)

c)

Diamond

d)

H2O(Ice)

16.

which of the following point defects are shown by AgBr(s) Crystals?

a)

Schottky and impurity

b)

Frenkel and schottky

c)

Frenkel and impurity

d)

Non stoichiometric defect

17.

The percentage of empty space in a face centre cubic arrangement is

a)

74

b)

52

c)

68

d)

26

18.

A mixed oxide has ccp arrangement in which the cations 'X' occupy 1/3rd of octahedral voids and the cations 'Y' occupy 1/3rd of tetrahedral voids.The formula of oxide is:

a)

X 2Y 3O 2

b)

XY 3O

c)

X 2YO 3

d)

XY 2O 3

19.

A solid is made up of 2 elements P and Q. Atoms Q are in ccp arrangement,while P atoms occupy all the tetrahedral sites.The formula of the compound is:

a)

PQ 2

b)

P 6Q 4

c)

P 2Q

d)

PQ

20.

A compound is formed by two elements X and Y. Atoms of the element Y (as anions) make ccp and those of the element X (as cations) occupy all the octahedral voids. The formula of the compound is :

a)

X 2Y

b)

X 4Y

c)

XY

d)

XY 2

21.

Atoms of element B form hcp lattice and those of the element A occupy 2/3rd of tetrahedral voids. The formula of the compound formed by the elements A and B is:

a)

A 4B 3

b)

A 2B

c)

A 3B 4

d)

AB

22.

Name the defects noticed when a solid is heated.

a)

Frenkel Defect

b)

Interstitial Defect

c)

Schottky Defect

d)

Vacancy Defect

23.

A crystalline solid:

a)

changes abruptly from solid to liquid when heated.

b)

has no definite melting point.

c)

undergoes deformation of its geometry easily

d)

has irregular 3-dimensional arrangements.

24.

Copper crystalline in FCC with a unit cell length of 361pm. What is the radius of a copper atom?

a)

127pm

b)

123pm

c)

181pm

d)

167pm

25.

Schottky defect in crystal is observed when

a)

The ion leaves its normal position and occupies an interstitial location

b)

unequal number of cation and anions are missing from the lattice

c)

density of the crystal increases.

d)

an equal number of cations and anions are missing from the lattice.

26.

Each of the following solids show, the Frenkel defect except

a)

ZnS

b)

AgBr

c)

AgI

d)

KCl

27.

in which pair most efficient packing is present

a)

hcp and bcc

b)

hcp and ccp

c)

bcc and ccp

d)

bcc and simple cubic cell

28.

Crystal system characterized by a ≠ b≠ c and α = β = γ = 90o

a)

Hexagonal

b)

Ortho rhombic

c)

Tetragonal

d)

Triclinic

29.

The molecules of hydrogen bonded molecular solids contain .................... covalent bonds between H and F, O or N atoms.

a)

polar

b)

non polar

c)

coordinate

30.

Which of the following is crystalline solid

a)

Rock salt

b)

Cane Sugar

c)

Gold

d)

All of them

31.

Amorphous solids are known as:

a)

true solids

b)

crystalline solids

c)

super cooled liquid

32.

True or False:

Amorphous solids have only a short range order

a)

True

b)

False

33.

Crystalline solids are

a)

Anisotropic

b)

Isotropic

34.

In non-polar molecular solids, the binding force between the particles is

a)

Stronger dipole-dipole interactions

b)

Strong hydrogen bond

c)

London dispersion forces

d)

Covalent bond

35.

NaCl is an example for

a)

Ionic solids

b)

metallic solids

c)

molecular solids

d)

non polar molecular solids

36.

The important characteristics of a crystal lattice are:

a)

Each point in a lattice is called lattice point or lattice site

b)

Each point in a crystal lattice represents one constituent particle which may be an atom, a molecule

(group of atoms) or an ion.

c)

Lattice points are joined by straight lines to bring out the geometry of the lattice.

d)

all of the above

37.

Which defect is commonly seen in AgBr crystal?

a)

Schottky defect

b)

frenkel defect

c)

Metal excess defect

d)

Metal deficiency defect

38.

A crystalline solid:

a)

changes abruptly from solid to liquid when heated

b)

has no definite melting point

c)

does not undergoes deformation of its geometry easily

d)

has regular 3-dimensional arrangements.

39.

Crystal in which a=b=c and

 α\alpha  = β\beta  = γ\gamma  =90

a)

Tetragonal 

b)

Rhombohedral 

c)

Cubic 

d)

Triclinic 

40.

The number of basic crystal systems are

a)

7

b)

5

c)

3

Similar Resources on Wayground

Anatomy Chapter 2 part 2

37 questions

Anatomy Chapter 2 part 2

quiz

Worksheet

•

11th Grade - University

CHEMISTRY EOC

37 questions

CHEMISTRY EOC

quiz

Worksheet

•

9th - 12th Grade

CHEMICAL KINETICS - Reaction Rates

38 questions

CHEMICAL KINETICS - Reaction Rates

quiz

Worksheet

•

9th - 12th Grade

Moles and Molar Mass and Percent Composition Review

36 questions

Moles and Molar Mass and Percent Composition Review

quiz

Worksheet

•

9th - 12th Grade

Chemistry: Gas Laws

41 questions

Chemistry: Gas Laws

quiz

Worksheet

•

10th - 12th Grade

Unit 4 Test Review

45 questions

Unit 4 Test Review

quiz

Worksheet

•

9th - 12th Grade

Ionic/Covalent Test

45 questions

Ionic/Covalent Test

quiz

Worksheet

•

9th - 12th Grade

Chemistry 1st Half Syllabus Test

40 questions

Chemistry 1st Half Syllabus Test

quiz

Worksheet

•

11th - 12th Grade