A metal has bcc structure and the edge length of its unit cell is $3.04\mathop {\rm A}\limits^ \circ $. The volume of the unit cell in $\;{\rm{c}}{{\rm{m}}^3}$ will be

$2.81 \times {10^{ - 23}}\;{\rm{c}}{{\rm{m}}^3}$

$1.6 \times {10^{ - 21}}\;{\rm{c}}{{\rm{m}}^3}$

$6.02 \times {10^{ - 23}}\;{\rm{c}}{{\rm{m}}^3}$

$6.6 \times {10^{ - 24}}\;{\rm{c}}{{\rm{m}}^3}$

Back to SOLID STATE

Your Progress

0 / 112 Answered

Correct

Incorrect

Accuracy

NEET • CHEMISTRY • SOLID STATE

Solid state practice · Medium

Try a question, then open “View answer” to check it. Sign in to submit answers and save progress.

Practice format and chapter quiz

The practice player uses single-correct-answer MCQs. Chapter quizzes help you review a topic; they are not full-length NEET mock papers.

Take a chapter quiz →

Showing 1-30 of 112 questions

1 Medium

1 of 112

Application +4 | -1

Calculate the ionic radius of a

\mathrm{C}{\mathrm{s}^ + }

ion, assuming that the cell edge length for CsCl is 0.4123 nm and that the ionic radius of a

\mathrm{C}{\mathrm{I}^ - }

ion is

\;0.181\,\,nm

View answer and explanation

Correct option: D

0.176\mathrm{ }nm

Option D (

0.176\mathrm{ }nm

) is correct because it's the calculated ionic radius of Cs+ based on the given information.

2 Medium

2 of 112

Remembering +4 | -1

In the unit cell of FCC system, the number of octahedral and tetrahedral holes are

View answer and explanation

Correct option: B

4,8

Option B (4, 8) is correct because in a face-centered cubic (FCC) unit cell, there are 4 octahedral holes and 8 tetrahedral holes.

3 Medium

3 of 112

Remembering +4 | -1

Which one of the following has Frenkel defect?

View answer and explanation

Correct option: B

\mathrm{AgBr}

Option B (AgBr) is correct because AgBr exhibits both Schottky and Frenkel defects due to the relatively small size of Ag+ ions, allowing them to occupy interstitial sites.

4 Medium

4 of 112

Application +4 | -1

If AgCl is doped with

{10^{ - 6}}

mol% of

CdC{l_2}

, the concentration of cation vacancies will be

View answer and explanation

Correct option: C

6.02 \times {10^{15}}\,mo{l^{ - 1}}

Option C is correct because each

CdCl_2

introduces one cation vacancy in AgCl. The concentration of cation vacancies is equal to the concentration of

CdCl_2

which is

{10^{-6}}

mol% of AgCl.

5 Medium

5 of 112

Understanding +4 | -1

In the laboratory, sodium chloride is made by burning the sodium in the atmosphere of chlorine which is yellow in colour. The cause of yellow colour is

View answer and explanation

Correct option: A

Presence of electrons in the crystal lattice

Option A (Presence of electrons in the crystal lattice) is correct because the yellow color in NaCl crystals is due to F-centers, which are electrons trapped in anion vacancies.

6 Medium

6 of 112

Analyzing +4 | -1

Statement I:

NiO

is expected to have more defects than

NaCl

.

Statement II:

NaCl

is an ionic compound.

View answer and explanation

Correct option: B

Both Statement I and Statement II are correct but Statement II is not the correct explanation of Statement I

Option B (Both Statement I and Statement II are correct but Statement II is not the correct explanation of Statement I) is correct because NiO has more defects due to higher charge density and NaCl being ionic is a true statement, but not the reason for the defect difference.

7 Medium

7 of 112

Application +4 | -1

In a binary compound, atoms of element

A

form a hcp structure and those of element

M

occupy

2/3

of the tetrahedral voids of the hcp structure. The formula of the binary compound is

View answer and explanation

Correct option: B

{M_4}{A_3}

Option B (

{M_4}{A_3}

) is correct because in an HCP structure, the number of tetrahedral voids is twice the number of atoms, and 2/3 of these voids are occupied by M.

8 Medium

8 of 112

Understanding +4 | -1

6:6\,\,NaCl

Co-ordination changes to

8:8

Co-ordination on

View answer and explanation

Correct option: A

Applying high pressure

Option A (Applying high pressure) is correct because applying high pressure favors structures with higher coordination numbers, causing the 6:6 NaCl coordination to change to 8:8.

9 Medium

9 of 112

Application +4 | -1

If the distance between

\mathrm{N}{\mathrm{a}^ + }

and

\mathrm{C}{\mathrm{I}^ - }

ions in NaCl crystal is ‘

a

’ pm what is the length of the cell edge?

View answer and explanation

Correct option: C

2a\,\,\mathrm{pm}

Option C (

2a\,\,\mathrm{pm}

) is correct because in NaCl, the distance between Na+ and Cl- ions is half the cell edge length.

10 Medium

10 of 112

Understanding +4 | -1

Si doped with Sb is an example of ______ semi conductor. While the one which is doped with Ga is _____ type semi conductor

View answer and explanation

Correct option: A

n – type, p – type

Option A (n – type, p – type) is correct because Si doped with Sb (antimony, group 15) is n-type, and Si doped with Ga (gallium, group 13) is p-type.

11 Medium

11 of 112

Remembering +4 | -1

The structure of

\mathrm{N}{\mathrm{a}_2}\mathrm{O}

crystal is

View answer and explanation

Correct option: D

Antifluorite type

Option D (Antifluorite type) is correct because

\mathrm{N}{\mathrm{a}_2}\mathrm{O}

has a structure where the positions of cations and anions are reversed compared to the fluorite structure.

12 Medium

12 of 112

Understanding +4 | -1

Select the incorrect statement

View answer and explanation

Correct option: D

Density of crystal always increases due to substitutional impurity defect

Option D is the incorrect statement because substitutional impurity defects can either increase or decrease the density of the crystal, depending on the mass of the impurity.

13 Medium

13 of 112

Application +4 | -1

A compound is formed by element A and B is cubic.

A

atoms are at the corners and

B

atoms are at the face centre. What is the formula?

View answer and explanation

Correct option: C

A B_3

Option C (

A B_3

) is correct because A atoms at the corners contribute 1/8 each, totaling 1, and B atoms at the face centers contribute 1/2 each, totaling 3.

14 Medium

14 of 112

Application +4 | -1

The orthorhombic, the value of

a,b,

and

c

are respectively

4.2\mathop \mathrm{A}\limits^ \circ ,6.8\mathop \mathrm{A}\limits^ \circ

and

8.3\mathop \mathrm{A}\limits^ \circ .

Given the molecular mass of the solute is 155 g

\mathrm{mo}{\mathrm{l}^{ - 1}}

and that of density is 3.3g/cc, the number of formula units per unit cell is

View answer and explanation

Correct option: C

Option C is correct because the number of formula units per unit cell (Z) is calculated using the formula Z = (ρ * V * NA) / M, where ρ is density, V is the volume of the unit cell, NA is Avogadro's number, and M is the molecular mass. The result is approximately 4.

15 Medium

15 of 112

Application +4 | -1

A solid is made of two elements

X

and

Z

. The atoms

Z

are in ccp arrangement while the atom

X

occupy all the tetrahedral sites. What is the formula of the compound?

View answer and explanation

Correct option: C

{X_2}Z

Option C is correct because in a ccp arrangement, there is one atom per lattice point, and the number of tetrahedral sites is twice the number of atoms. Therefore, if Z atoms are in ccp, there are 2Z tetrahedral sites occupied by X atoms, resulting in the formula X2Z.

Explore Other Chapters in CHEMISTRY

View All →

CHEMICAL BONDING & MOLECULAR STRUCTURE 595 MCQs THERMODYNAMICS 583 MCQs STRUCTURE OF ATOM 499 MCQs CLASSIFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES 429 MCQs Equilibrium 412 MCQs STATES OF MATTER 410 MCQs

16 Medium

16 of 112

Understanding +4 | -1

For an ionic crystal of the general formula

AX

and coordination number 6, the value of radius ratio will be

View answer and explanation

Correct option: A

in between 0.732 and 0.414

Option A (in between 0.732 and 0.414) is incorrect. The correct range is between 0.414 and 0.732 because a coordination number of 6 corresponds to an octahedral geometry, and the radius ratio for octahedral geometry falls within that range.

17 Medium

17 of 112

Analyzing +4 | -1

Assertion : No compound has both Schottky and Frenkel defects.

Reason : Both defects change the density of the solid.

View answer and explanation

Correct option: D

If both the Assertion and Reason are incorrect.

Option D (If both the Assertion and Reason are incorrect) is correct because a compound can have both Schottky and Frenkel defects under specific conditions, and only Schottky defects change the density of the solid significantly.

18 Medium

18 of 112

Application +4 | -1

The interionic distance for cesium chloride crystal will be

View answer and explanation

Correct option: D

\frac{{\sqrt 3 }}{2}a

Option D (

\frac{{\sqrt 3 }}{2}a

) is correct because in a CsCl structure, the interionic distance is half the body diagonal of the cubic unit cell.

19 Medium

19 of 112

Understanding +4 | -1

Which of the following compounds is likely to show both Frenkel and Schottky defects in its crystalline form?

View answer and explanation

Correct option: A

AgBr

Option A (

AgBr

) is correct because

AgBr

exhibits both Frenkel and Schottky defects due to the relatively small size of

Ag^+

ions allowing them to occupy interstitial sites (Frenkel), and the possibility of missing ions (Schottky).

20 Medium

20 of 112

Understanding +4 | -1

The following is not a function of an impurity present in a crystal

View answer and explanation

Correct option: A

Establishing thermal equilibrium

Option A (Establishing thermal equilibrium) is correct because impurities do not directly establish thermal equilibrium; this is achieved through heat transfer processes.

21 Medium

21 of 112

Application +4 | -1

A metal has bcc structure and the edge length of its unit cell is

3.04\mathop \mathrm{A}\limits^ \circ

. The volume of the unit cell in

\;\mathrm{c}{\mathrm{m}^3}

will be

View answer and explanation

Correct option: B

2.81 \times {10^{ - 23}}\;\mathrm{c}{\mathrm{m}^3}

Option B (

2.81 \times {10^{ - 23}}\;\mathrm{c}{\mathrm{m}^3}

) is correct because it is the volume of the unit cell calculated from the given edge length.

22 Medium

22 of 112

Analyzing +4 | -1

Assertion (A): Covalent crystal have the higher melting point.

Reason (R): Covalent bonds are stronger than ionic bonds.

View answer and explanation

Correct option: C

(A) is correct but (R) is not correct

Option C is correct because covalent crystals generally have high melting points due to the strong covalent bonds, but covalent bonds are not always stronger than ionic bonds (e.g., NaCl has a higher lattice energy than diamond).

23 Medium

23 of 112

Understanding +4 | -1

Select the correct statements.
(A) Crystalline solids have long range order.
(B) Crystalline solids are isotropic
(C) Amorphous solids are sometimes called pseudo solids
(D) Amorphous solids soften over a range of temperatures.
(E) Amorphous solids have a definite heat of fusion
Choose the most appropriate answer from the options given below

View answer and explanation

Correct option: D

(A), (C), (D) only

Option D ((A), (C), (D) only) is correct because crystalline solids have long-range order, amorphous solids are pseudo solids, and amorphous solids soften over a range of temperatures.

24 Medium

24 of 112

Remembering +4 | -1

The statement that, “It is possible to choose along the three co-ordinate axes unit distance

a,b,c

not necessarily of the same length, such that the ratio of there intercepts of any plane in the crystal is given by in

ma:nb:pc

where

m,n,p

are either integral whole numbers including infinity or fraction of whole number” is known as :

View answer and explanation

Correct option: A

Hauy’s law of rationality of indices

Option A (Hauy’s law of rationality of indices) is correct because Hauy's law describes the rational relationship between intercepts of crystal planes and unit distances along crystal axes.

25 Medium

25 of 112

Understanding +4 | -1

In a face centred cubic cell, an atom at the face contributes to the unit cell

View answer and explanation

Correct option: B

\frac{1}{2}\;part

Option B (

\frac{1}{2}\,part

) is correct because an atom at the face of a face-centered cubic cell is shared by two unit cells.

26 Medium

26 of 112

Remembering +4 | -1

Which is an example of ferroelectric compound?

View answer and explanation

Correct option: C

Barium titanate

Option C (Barium titanate) is correct because Barium titanate (BaTiO3) is a well-known example of a ferroelectric compound.

27 Medium

27 of 112

Remembering +4 | -1

Gold crystallizes with a

View answer and explanation

Correct option: D

fcc

Option D (fcc) is correct because gold (Au) crystallizes in a face-centered cubic (fcc) structure.

28 Medium

28 of 112

Remembering +4 | -1

The percentages of void space for simple cubic, body centered cubic and hexagonal close packed arrangement respectively are

View answer and explanation

Correct option: A

48,32,26

Option A (48,32,26) is correct because the packing efficiencies for simple cubic, body-centered cubic, and hexagonal close-packed arrangements are 52%, 68%, and 74% respectively, leading to void spaces of 48%, 32%, and 26%.

29 Medium

29 of 112

Understanding +4 | -1

Right option for the ratio of number of octahedral voids and total octahedral and tetrahedral voids in face centred cubic unit cell is

View answer and explanation

Correct option: C

0.04375

Option C (0.04375) is correct because it accurately calculates the ratio of octahedral voids to the total number of octahedral and tetrahedral voids in an FCC unit cell.

30 Medium

30 of 112

Analyzing +4 | -1

Assertion (A): In

{NaCl}

crystal each

{Na}^{+}

ion is touching

6 \, {Cl}^{-}

ions but these

{Cl}^{-}

ions do not touch each other.

Reason (R): The radius ratio is greater than 0.414 required for exact fitting.

View answer and explanation

Correct option: A

Both (A) and (R) are correct and (R) is the correct explanation of (A)

Option A is correct because in NaCl, each

Na^+

ion is surrounded by 6

Cl^-

ions, and the radius ratio is greater than 0.414, preventing the

Cl^-

ions from touching each other.

Revision notes and key takeaways

Review SOLID STATE in your textbook or class notes, then use this set to check your understanding.

Key Takeaways

✓ This set contains 112 single-correct-answer MCQs on SOLID STATE.
✓ Try each question before opening its answer. Read the explanation where one is available.
✓ Sign in to save submitted answers. Revisit incorrect answers alongside your textbook or class notes.

Showing 1-30 of 112 questions

Continue Your Practice

📚 Switch Set (MEDIUM)

Chapter Sets

ALL 238 MCQs EASY 95 MCQs HARD 31 MCQs MEDIUM 112 MCQs

0 /112

0✓ 0✗

0% Accuracy