$MgF{e_2}{O_4}\; - {\rm{ }}Ferrimagnetism$

$Cr{O_2}\; - {\rm{ }}Ferromagnetism$

Has an irregular three-dimensional arrangements

Undergoes deformation of its geometry easily

Back to SOLID STATE

Your Progress

0 / 95 Answered

Correct

Incorrect

Accuracy

NEET • CHEMISTRY • SOLID STATE

Solid state practice · Easy

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 95 questions

1 Easy

1 of 95

Remembering +4 | -1

Schottky defect in crystals is observed when

View answer and explanation

Correct option: D

Equal number of cations and anions are missing from the lattice

Option D (Equal number of cations and anions are missing from the lattice) is correct because Schottky defects involve the absence of an equal number of cations and anions to maintain electrical neutrality, leading to vacancies in the crystal lattice.

2 Easy

2 of 95

Analyzing +4 | -1

Wrong match is

View answer and explanation

Correct option: B

GaAs - Insulator

Option B (GaAs - Insulator) is the wrong match because GaAs is a semiconductor, not an insulator.

3 Easy

3 of 95

Application +4 | -1

A molecule contains atoms

A

and

B

such that

A

occurs at the corners of the cube and

Y

at the face centres. The formula of the molecule is

View answer and explanation

Correct option: A

A B_3

Option A (

A B_3

) is correct because the contribution of A is 1 and the contribution of B is 3.

4 Easy

4 of 95

Analyzing +4 | -1

Which species is diamagnetic ?

View answer and explanation

Correct option: D

All of these

Option D (All of these) is correct because

\mathrm{C}{\mathrm{a}^{2 + }}

\mathrm{H}{\mathrm{g}_2}\mathrm{C}{\mathrm{l}_2}

, and

\mathrm{S}{\mathrm{b}^{3 + }}

all have completely filled electron configurations, making them diamagnetic.

5 Easy

5 of 95

Remembering +4 | -1

The arrangement ABCABC……is referred to as,

View answer and explanation

Correct option: D

Cubic close packing

Option D is correct because the ABCABC... arrangement is characteristic of cubic close packing (ccp), also known as face-centered cubic (fcc).

6 Easy

6 of 95

Remembering +4 | -1

In a closed pack array of

N

spheres, the number of tetrahedral holes are

View answer and explanation

Correct option: C

2N

Option C (

2N

) is correct because in a closed packed array of N spheres, the number of tetrahedral holes is twice the number of spheres.

7 Easy

7 of 95

Understanding +4 | -1

Which one of the following defects in the crystals lowers its density?

View answer and explanation

Correct option: B

Schottky defect

Option B (Schottky defect) is correct because Schottky defects involve missing atoms or ions from the lattice, thus decreasing the density of the crystal.

8 Easy

8 of 95

Analyzing +4 | -1

Which one is diamagnetic?

View answer and explanation

Correct option: C

{\mathrm{F}^ - }

Option C (

{\mathrm{F}^ - }

) is correct because it has a completely filled electron configuration, making it diamagnetic.

9 Easy

9 of 95

Understanding +4 | -1

Which has no rotation of symmetry?

View answer and explanation

Correct option: D

Triclinic

Option D (Triclinic) is correct because a triclinic crystal system has no rotational symmetry other than a 1-fold rotation.

10 Easy

10 of 95

Understanding +4 | -1

In a face centred cubic lattice the number of nearest neighbours for a given lattice point are :

View answer and explanation

Correct option: C

Option C (12) is correct because in a face-centered cubic lattice, each atom has 12 nearest neighbors.

11 Easy

11 of 95

Understanding +4 | -1

The correct relationship between edge length (a) and radius of atom (r) for BCC unit cell is

View answer and explanation

Correct option: B

a = \frac{{4r}}{{\sqrt 3 }}

Option B (

a = \frac{{4r}}{{\sqrt 3 }}

) is correct because in a BCC unit cell, the atoms touch along the body diagonal, and the body diagonal is equal to

4r

, and also equal to

a\sqrt{3}

12 Easy

12 of 95

Remembering +4 | -1

Quartz is an example of :

View answer and explanation

Correct option: C

Framework silicate

Option C (Framework silicate) is correct because quartz has a three-dimensional network structure of silicate tetrahedra.

13 Easy

13 of 95

Remembering +4 | -1

Identify the crystal system having edge lengths a=b=c and inter-axial angles

\alpha = \beta = \gamma \ne {90^0}

View answer and explanation

Correct option: A

Rhombohdral

Option A (Rhombohdral) is correct because it matches the given conditions of equal edge lengths (a=b=c) and equal inter-axial angles not equal to 90 degrees.

14 Easy

14 of 95

Remembering +4 | -1

The unit cell with dimensions

\alpha = \beta = \gamma = 90^\circ ,a = b \ne c

View answer and explanation

Correct option: D

Tetragonal

Option D is correct because a unit cell with

\alpha = \beta = \gamma = 90^\circ

and

a = b \ne c

defines a tetragonal crystal system.

15 Easy

15 of 95

Remembering +4 | -1

For cubic coordination, the value of radius ratio is

View answer and explanation

Correct option: D

0.732 - 1.000

Option D (

0.732 - 1.000

) is correct because the radius ratio for cubic coordination (coordination number 8) falls within this range.

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 Easy

16 of 95

Application +4 | -1

A compound formed by elements

X

and

Y

crystallises in a cubic structure in which the

X\,atoms

are at the corners of a cube and the

Y\,atoms

are at the face centres. The formula of the compound is

View answer and explanation

Correct option: A

X{Y_3}

Option A (

X{Y_3}

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

17 Easy

17 of 95

Understanding +4 | -1

\mathrm{Z}

is the number of atoms in the unit cell that represents the closest packing sequence

- ABCABC - ,

the number of tetrahedral voids in the unit cell is equal to :

View answer and explanation

Correct option: B

2\mathrm{Z}

Option B (

2\mathrm{Z}

) is correct because the number of tetrahedral voids is always twice the number of atoms in the unit cell.

18 Easy

18 of 95

Analyzing +4 | -1

Which species is paramagnetic?

View answer and explanation

Correct option: D

All are correct

Option D is correct because NO, Fe3+, and Fe2+ all have unpaired electrons, making them paramagnetic.

19 Easy

19 of 95

Remembering +4 | -1

Which among the following is an example of ferro magnetic compound

View answer and explanation

Correct option: C

Cr{O_2}

Option A (

\mathrm{BaTi}{\mathrm{O}_3}

) is correct because Barium Titanate is a well-known example of a ferroelectric compound, exhibiting spontaneous electric polarization.

20 Easy

20 of 95

Remembering +4 | -1

Metallic crystalline solids :

View answer and explanation

Correct option: C

Are good conductors of heat and electricity

Option C (Are good conductors of heat and electricity) is correct because metallic crystalline solids have free electrons that allow them to conduct heat and electricity efficiently.

21 Easy

21 of 95

Remembering +4 | -1

Packing efficiency of fcc unit cell is

View answer and explanation

Correct option: A

0.74

Option A (0.74) is correct because the packing efficiency of an fcc unit cell is 74%, which is derived from the volume occupied by the spheres divided by the total volume of the unit cell.

22 Easy

22 of 95

Understanding +4 | -1

On doping

Ge

metal with a little of

In

Ga

. One gets what type semi-conductor

View answer and explanation

Correct option: A

p-type

Option A (p-type) is correct because doping Germanium (Ge) with Indium (In) or Gallium (Ga), which are group 13 elements, results in a p-type semiconductor due to the creation of holes.

23 Easy

23 of 95

Understanding +4 | -1

8:8 co-ordination of

\mathrm{CsCl}

is found to change into 6:6 co-ordination on :

View answer and explanation

Correct option: B

Increasing temperature

Option B (Increasing temperature) is correct because increasing the temperature provides energy for the ions to move, which can lead to a change in the coordination number from 8:8 to 6:6.

24 Easy

24 of 95

Understanding +4 | -1

The structure of

\mathrm{MgO}

is similar to

\mathrm{NaCl}

. The co-ordination number of

\mathrm{Mg}

is :

View answer and explanation

Correct option: B

Option B (6) is correct because MgO has a NaCl structure, and in NaCl structure, each ion is surrounded by 6 oppositely charged ions, giving a coordination number of 6.

25 Easy

25 of 95

Analyzing +4 | -1

Which is the incorrect statement

View answer and explanation

Correct option: D

Fe{O_{0.98}}

has non-stoichiometric metal deficiency defect

Option D (

Fe{O_{0.98}}

has non-stoichiometric metal deficiency defect) is incorrect because

Fe{O_{0.98}}

has a non-stoichiometric metal *deficiency* defect, but the question asks for the INCORRECT statement, and the statement is actually correct.

26 Easy

26 of 95

Understanding +4 | -1

Which of the following statements is not correct?

View answer and explanation

Correct option: B

The number of carbon atoms in an unit cell of diamond is 4

Option B (The number of carbon atoms in an unit cell of diamond is 4) is not correct because the number of carbon atoms in a unit cell of diamond is 8.

27 Easy

27 of 95

Understanding +4 | -1

A crystalline solid

View answer and explanation

Correct option: A

Changes abruptly from solid to liquid when heated

Option A (Changes abruptly from solid to liquid when heated) is correct because crystalline solids have a sharp melting point.

28 Easy

28 of 95

Understanding +4 | -1

The solid is a bad conductor of electricity since

View answer and explanation

Correct option: A

In solid

NaCl

, there is no velocity of ions

Option A (In solid

NaCl

, there is no velocity of ions) is correct because ions in solid

NaCl

are fixed in the lattice and cannot move freely to conduct electricity.

29 Easy

29 of 95

Analyzing +4 | -1

If the positions of

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

and

\mathrm{C}{\mathrm{l}^ - }

are interchanges in NaCl, the crystal lattice with respect to

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

and

\mathrm{C}{\mathrm{l}^ - }

is :

View answer and explanation

Correct option: C

Fcc and bcc

Option C (Fcc and bcc) is correct because in NaCl, Na+ ions occupy octahedral voids in the fcc lattice of Cl- ions. Interchanging their positions results in Cl- ions occupying octahedral voids in the fcc lattice of Na+ ions, effectively creating a bcc arrangement for Cl- with respect to Na+.

30 Easy

30 of 95

Understanding +4 | -1

The constituent particles of a solid have

View answer and explanation

Correct option: B

Vibratory motion only

Option B (Vibratory motion only) is correct because in solids, constituent particles are fixed and can only vibrate about their mean positions.

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 95 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 95 questions

Continue Your Practice

📚 Switch Set (EASY)

Chapter Sets

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

0 /95

0✓ 0✗

0% Accuracy