CBSE Class 12 Chemistry Solid State Worksheet

Official Class 12 Chemistry Worksheets: Unit 1 The Solid State

Review targeted practice sets for Class 12 Chemistry Unit 1 The Solid State. Built according to official educational guidelines for the 2026-27 academic year, these downloadable worksheets support daily revision and core concept reinforcement.

Chapter-wise Practice Material: Unit 1 The Solid State

Access the complete worksheet PDF for Unit 1 The Solid State below. Regular practice with these targeted questions builds familiarity with standard exam patterns and helps secure higher marks in final Chemistry evaluations.

Comprehension Based

Paragraph–I

A gold single crystal has a cubic shape and the dimension of the cube is, a = 1.000cm. When irradiated with Cu Ka X-rays(λ =154.05pm) at the angle θ of 10.89° is gives a well-defined first-order diffraction pattern. The atomic weight of Au is MAu = 196.97g mol–1.

Question. How many gold mass are in the cube?
a. 5.904×1022
b. 5.904×1020
c. 5.904×1018
d. 5.904×1016
Answer : A

Question. What is the mass of the unit cell of gold?
a. 1.308x10−19
b. 1.308x10−21
c. 1.308x10−17
d. 1.308x10−15
Answer : B

Question. What is the density of gold?
a. 29.31g / cm3
b. 26.29g / cm3
c. 14.21g / cm3
d. 19.31g / cm3
Answer : D

Paragraph–II
A spinel is an important class of oxides consisting of two types of metal ions with the oxide ions arranged in ccp layers. The normal spinel has non-eight of the tetrahedral holes occupied by one type of metal ion and one-half of the octahedral holes occupied by another type of metal ion.

Question. Type of hole occupied by Al3+ ions is:
a. tetrahedral
b. octahedral
c. both a. and b.
d. none of these
Answer : B

Question. Type of hole occupied by Mg2+ ions is:
a. tetrahedral
b. octahedral
c. both (a) and (b)
d. none of thes
Answer : A

Match the Column

Question. Match the crystal system/unit cells listed in Column-I with their characteristics features in Column-II:

Column I Column II
(A) Simple cubic and face-centered cubic 1. Have these cell parameters
a=b=c and α = β = γ
(B) Cubic and rhombohedral 2. Are two crystal systems
(C) Cubic and tetragonal 3. Have only two crystal lographic angles of 90°
(D) Hexagomal and monoclinic 4. Belong to same crysta system

a. A→1,4; B→2; C→2; D→2,3
b. A→2; B→2; C→3,4; D→4
c. A→1; B→3,4; C→2,3; D→4
d. A→3; B→1,2; C→3,4; D→2
Answer : A

Question. Match the statement of Column I with those in Column II:

Column I Column II
(A) Cubic 1. Have 2-fold axis of symmetry
(B) Orthorhombic 2. Have all axial angles identical
(C) Tetragonal 3. Have all edge lengths identical
(D) Rhombohedral 4. More than one types of Bravias

a. A→1,2,3,4; B→1,2,4; C→1,2,4; D→1,2,3
b. A→1,4; B→1,2; C→1,2,4; D→1,2,3
c. A→2,3,4; B→2,4; C→1,2,4; D→1,2,3
d. A→4; B→2,4; C→1,4; D→1,3
Answer : A

Question. Match the statement of Column I with those in Column II:

Column I Column II
(A) 74% occupancy of space 1. Coordination no. of cat
ion in fluorite structure
(B) Coordination no. 8 2. Cubic close packing
(C) Ca2+ion in CaF2 3. Hexagonal close
packing
(D) Coordination no. –12 4. body centred cubic
packing

a. A→2; B→1,3; C→4; D→2,3
b. A→1,3; B→1,2; C→2; D→3
c. A→2,3; B→1,4; C→2; D→2,3
d. A→3,4; B→4; C→2,3; D→3
Answer : C

Question. Match the statement of Column I with those in Column II:

Column I Column II
(A) Layer structure 1. Semiconductor
(B) Supercooled liquid 2. ZnS
(C) Materials having the conductivity range 10–6–10–4Sm–1 3. Colours in alkyl halide
(D) Substances having Frenkel defects 4. Graphite and CdI2
(E) Substances having a fluorite structure 5. Glass
(F) Creation of F-centres 6. Coordination number 8 : 4

a. A→4; B→5; C→1; D→2; E→6; F→3
b. A→3; B→5; C→2; D→4; E→1; F→6
c. A→5; B→4; C→2; D→1; E→6; F→3
d. A→6; B→3; C→1; D→5; E→2; F→4
Answer : A
 

Integer

Question. The structure of diamond and silicon is same and can be described as atoms taking corners faces of a cube and also taking position of alternate tetrahedral voids. What is the

""CBSE-Class-12-Chemistry-Solid-State-Worksheet

Answer : 145

Question. The crystal of a solid is square packing of identical spheres in each layer and spheres of one layer are placed just above the voids made by spheres in previous layer. 
The packing efficiency of such crystal (in %) is:
[π = 3.15, √2 = 1.4]

""CBSE-Class-12-Chemistry-Solid-State-Worksheet-1

Answer : 75

Question. AB crystallizes in a rock salt structure with A : B = 1 : 1. The shortest distance between A and B is Y1/3 nm. The formula mass of AB is 6.023 Y amu where Y is any arbitrary constant. The density in kg m–3 ?
Answer : 5

Question. If the radius of Mg2+ ion, Cs+ ion, O2–ion, S2– ion and Cl– ion are 0.65Å, 1.69Å, 1.40Å, 1.84Å and 1.81Å respectively.
Find the value of x + y − z where x,y,z=co-ordination numbers of the cations in the crystals of MgS, MgO and CsCl ?
Answer : 2

Question. The two ions A+ and B– have radii 88 and 200 pm respectively. In the closed packed crystal of compound AB, the co-ordination number of A+ is:
Answer : 6

Question. A compound AB crystallizes in rock salt structure. The ionic radius of A+ and B– are 60 pm and 100 pm respectively and if atomic masses of A and B are 200 and 120 respectively then calculate the value of x if density of the crystal = x/3.2 gm/cm3. Given 1 amu 1.6 x 10-24 gm?
Answer : 200

Question. The average total number of ions in sphalerite structure per unit cell if there is a Shottky defects of (1) anion per unit cell:
Answer : 6

Question. A metal ‘M’ having atomic mass 31.25 crystallizes in cubic close packing and it shows “Schottky defects”. If the edge length of the cubic lattice is 500 pm and density of the metal is 1.6075 gm/ml then the number of moles of metal atom ‘M’ missing litre of the crystal. Given 1 amu 1.67 x 10-24 gm
Answer : 2

Question. X-ray analysis of a Mn – Si alloy with 75 atomic percent of Mn showed that the unit cell is cubic and the lattice parameter, a = 2.86Å. The density of the alloy is 6.85 g/c.c. The total number of atoms in the unit cell is:
(Mutliply your answer by 10)
Answer : 5

 
 
1. What is meant by forbidden zone in reference to band theory of solids?
 
2. Refractive index of a solid is observed to have the same value along all directions. Comment on the nature of this solid. Would it show cleavage property?
 
3. Write the formula of a compound in which the element Y forms ccp lattice and atoms of X occupies 1/3rd of tetrahedral voids. (2015)
 
4. An alloy of gold and cadmium crystallizes with a cubic structure in which gold atoms occupies the corners and cadmium atoms fit into the face center. Assign formula of this alloy.
 
5. Iron has a bcc unit cell with a cell dimension of 286.65pm. The density of Fe is
 
7.874 gcm-3. Use this information to calculate Avogadro’s number. (Fe = 55.845u)
 
6. Silver crystallizes in fcc unit cell. If the edge length of Ag atom is 4.07 x 10-8 cm and density of silver is 10.5 g cm-3calculate the atomic mass of silver.
 
7. An element crystallizes in fcc structure with edge length 200pm. Calculate the density if 200g of the element contains 24 x 1023 atoms.
 
8. How are the following properties of crystal affected by Schottky and Frenkel defect:
a) Density
b) Electrical conductivity
 
9. a) Why does the presence of excess of lithium make LiCl crystals pink?
b) Calculate the number of atoms in cube based unit cell having one atom on each corner and two atoms on its each body diagonal.
 
10. Account for the following:
a) Phosphorus doped with silicon is a semi-conductor.
b) Schottky defect lowers the density of the solid.
c) Some of the very old glass objects appear slightly milky instead of being transparent.
 
11. Explain the following properties giving suitable examples:
a) Ferromagnetism
b) Para magnetism
c) Ferrimagnetism
 
12. An element A crystallizes in fcc structure. 208g of it have 4.28 x 1024 atoms. Calculate the edge length if the density is 7.2g/cc.
 
13. An element crystallizes in cubic structure. The edge length of the unit cell is 350pm. If its molar mass is 6.94g/mole, and the density 0.534g/cc, how many atoms are present in one unit cell of the element?
 
14. Define the following :
a) Schottky defect
b) Frenkel defect
c) F-centre
 
15. Differentiate between:
a) Face centered and end centered unit cells
b) Ferromagnetic and ferrimagnetic substances
c) n-type and p-type semiconductors
d) Tetragonal and orthorhombic unit cells
e) Crystal lattice and unit cell

 

Please click on below link to download CBSE Class 12 Chemistry Solid State Worksheet

Free study material for Chemistry

Download CBSE Practice Material: Class 12 Chemistry Unit 1 The Solid State

Chapter Practice Questions for Class 12 Chemistry

Explore reliable practice questions for Unit 1 The Solid State tailored for Class 12 Chemistry learners. Use these structured worksheets to evaluate preparedness and strengthen problem-solving skills.

Expert Practice Material for Class 12 Chemistry

Each worksheet is structured around standard CBSE textbooks, allowing students to check their working steps and correct mistakes early in their revision.

Complete Your Chapter Revision

Wrap up your chapter revision by testing your knowledge against standard question formats. Everything on our platform is provided free of charge.

FAQs

Where can I download the latest PDF for CBSE Class 12 Chemistry Solid State Worksheet?

You can download the teacher-verified PDF for CBSE Class 12 Chemistry Solid State Worksheet from StudiesToday.com. These practice sheets for Class 12 Chemistry are designed as per the latest CBSE academic session.

Are these Chemistry Class 12 worksheets based on the 2026-27 competency-based pattern?

Yes, our CBSE Class 12 Chemistry Solid State Worksheet includes a variety of questions like Case-based studies, Assertion-Reasoning, and MCQs as per the 50% competency-based weightage in the latest curriculum for Class 12.

Do you provide solved answers for CBSE Class 12 Chemistry Solid State Worksheet?

Yes, we have provided detailed solutions for CBSE Class 12 Chemistry Solid State Worksheet to help Class 12 and follow the official CBSE marking scheme.

How does solving CBSE Class 12 Chemistry Solid State Worksheet help in exam preparation?

Daily practice with these Chemistry worksheets helps in identifying understanding gaps. It also improves question solving speed and ensures that Class 12 students get more marks in CBSE exams.

Is there any charge for the Class 12 Chemistry practice test papers?

All our Class 12 Chemistry practice test papers and worksheets are available for free download in mobile-friendly PDF format. You can access CBSE Class 12 Chemistry Solid State Worksheet without any registration.