Most Important Solids Quiz Test Online

Solids Quiz Test Online

Solids Test. 1

1 / 20

1) Total unit cell dimensions are

2 / 20

2) Which one has the highest melting point and boiling point

Ionic crystal

Covalent crystal

Metallic crystal

Molecular crystal

3 / 20

3) Which of the following intermolecular forces are present in solid iodine

London dispersion forces

Dipole - Dipole forces

Hydrogen bonding

Debye forces

4 / 20

4) Crystalline parts of otherwise amorphous solids are known as

Polymorph

Allotrope

Crystallites

Isomorph

5 / 20

5) In a crystal lattice the correct sequence of bond angles is

All are possible

bc=α, ca=β, ab=γ

bc=β, ca=α, ab=γ

bc=γ, ca=β, ab=α

6 / 20

6) Lattice energy decreases with the increase in size of ion because oppositely charged ions

Have close packing

Have strong electrostatic forces

Have low empty spaces

Becomes less tight

7 / 20

7) In a crystal, the atoms are located at the position of

Minimum P.E.

Maximum P.E.

Infinite P.E.

Zero P.E.

8 / 20

8) Ionic solids are characterized by:

Solubility in polar solvent

Low melting point

Good conductivity in solid state

High vapor pressure

9 / 20

9) Transition temperature of Sulphur is

32.02

95.5 C

13.2 C

128 C

10 / 20

10) A solid may be made up of

Atoms

Molecues

all of these

Ions

11 / 20

11) Transition temperature is shown by which of the following pairs:

Isomorph and allotrope

All of these

Isomorph and polymorph

Allotrope and polymorph

12 / 20

12) When an element exist in more than one crystalline forms, it is known as

Allotropy

Polymorphism

Isomorphism

Anisotropy

13 / 20

13) Which of the following is not amorphous solid

Glue

Glass

Table salt

Rubber

14 / 20

14) Which solids are called true solids?

Amorphous

Metallic

Crystalline

Vitreous

15 / 20

15) Which ionic solid has highest lattice energy

CsCl

KCl

LiCl

NaCl

16 / 20

16) Which of the following is anisotropic

Rubber

Hydrogen

Quartz

Water

17 / 20

17) Cubic crystal system has the following unit cell dimensions (!= represents not equal )

a!=b!=c and 𝛼=𝛽=𝛾=90∘

a=b!=c and 𝛼=𝛽=𝛾=90∘

a=b=c and 𝛼=𝛽=𝛾=90∘

a=b!=c and 𝛼=𝛽=90∘, 𝛾=120∘

18 / 20

18) Coinage metals are Cu, Ag and Au and they have _______ crystal system.

Cubic

Tetragonal

Hexgonal

Trigon

19 / 20

19) In crystal structure of NaCl, the arrangement of Cl- ions is

Face centered cubic

Simple Cubic

Body centered cubic

Hexagonal

20 / 20

20) Which of the following is isotropic property

Refractive index

Cleavage

Coefficient of thermal expansion

Metallic conduction

Your score is

The average score is 58%

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Solids Test. 2

1 / 18

1) Lattice energy is also called:

Crystal energy

Energy of affinity

Potential energy

Bond energy

2 / 18

2) In the structure of NaCl, each sodium ion is surrounded by how many chloride ions?

3 / 18

3) The coordination number of Na⁺ in NaCl crystal is:

4 / 18

4) Independent molecule of NaCl may exist in

Vapour phase

Liquid phase

Solid phase

All of the above

5 / 18

5) The number of Cl⁻ ions per unit cell of a simple cubic lattice at the corners is:

6 / 18

6) Graphite is one of the allotropic forms of carbon. It is:

Both Anisotropic and A good conductor of electricity

Anisotropic

A good conductor of electricity

Isotropic

7 / 18

The electrical conductivity of graphite is greater in one direction than in another due to: (MDCAT 2016)

Anisotropy

Symmetry

Isomorphism

Cleavage plane

8 / 18

8) In diamond, each of the four outer electrons on every carbon atom is involved in covalent bonding. This means that there are no free electrons available. Which property does this explain? (SET 2019)

Diamond cuts diamond

Diamond is very hard

Diamond has a high refractive index

Diamond does not conduct heat and electricity

9 / 18

9) Which of the following is incorrect about the structure of iodine (I₂)?

I-I(g)>I-I(s)

I-I(g)<I-I(s) bond length

Metallic appearance

Face-centered cubic

10 / 18

10) The best conductors of electricity are:

Covalent solids

Metallic solids

Ionic solids

Molecular solids

11 / 18

11) The crystals formed due to London dispersion forces are:

Molecular

Covalent

Ionic

Metallic

12 / 18

12) Dry ice (solid CO₂) is an example of:

Molecular crystal

Covalent crystal

Metallic crystal

Ionic crystal

13 / 18

13) Molecular crystals are generally:

Soft

Hard

Very hard

Always polar

14 / 18

14) The crystalline form of white tin is:

Hexagonal

Cubic

All of these

Tetragonal

15 / 18

15) Which of the following has the highest lattice energy?

KBr

NaCl

LiCl

KCl

16 / 18

16) The coordination number of each ion in NaCl is:

17 / 18

17) Which of the following substances has a sharp melting point? (ETEA 2019)

Diamond

Glass

Gemstone

Coal tar

18 / 18

18) Which of the following is an example of polar molecular solid

Sugar

Dry ice

Iodine

Naphthalene

Your score is

The average score is 82%

Most Important Solids Quiz Test Online

Solids Quiz Test Online

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Solids Quiz Test Online

Other Chemistry Topics Quiz

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