Chemistry Liquids and Solids Online Mcqs Test

Malik TahirLast Updated: October 14, 2025

Important Chemistry Solids Question and Answer

Total Questions:	150
Time Allowed:	60 Minutes
Total Marks:	150
How to Attempt Test:	Please choose the right Option in MCQ-type question.
Test Helpful For:	Chemistry Test ECAT Test MDCAT Test FPSC/PPSC/SPSC/KPPSC/BPSC/AJKPSC/NTS Chemistry Interview Question Answer

Chemistry Solids Practice Test Online With Explanation

Please wait...

Page 1 of 6

Chemistry

1. Ionic solids are characterized by

Solubility in polar solvents

High vapour pressures

Low melting points

Good conductivity in solid state

2. In which one of the following does the central atom not possess an ‘octet’ in its outer shell?

NH₃

BH₃

CH₄

H₂O

3. Which of the following substances is not amorphous?

Glass

Rubber

Polymer

Ag NO₃

4. Imagine a man is sitting in a room. The room is closed from all sides, no entry, no exit of any gas. If the room expands suddenly then

His blood pressure will increase

He will feel cool

He will feel warmth

There will be no change in the internal environment of the room

5. In NaCl type structure, the coordination numbers of cation and anions are

6 and 4

4 and 4

6 and 6

8 and 4

6. An alkaloid contains 17.28% of nitrogen and its molecular mass is 162. The number of nitrogen atoms present in one molecule of alkaloid is:

Two

Five

Three

Four

7. The volume occupied by 1.4g of N₂ at S.T.P is

112 cm³

2.24 dm³

1.12 dm³

22.4 dm³

8. In a crystal a ≠ b ≠ c, a = ϒ = 90° and β ≠ 90°. It is

Rhombic

Trigonal

Monoclinic

Tetragonal

9. The coordination number 8:8 is found in the arrangement of

AB₂ type ionic compound

ZnS type structure

CsCl type structure

NaCl type structure

10. What is the pressure of 2 mole of NH₃ at 27°C when its volume is 5 lit in Van der Waals equation? (a = 0.17, b = 0.03711)

9.333 atm

9.2 atm

9.74 atm

10.33 atm

11. What will be the external pressure at which water may boil at 120°C?

790 mm of Hg

100 mm of Hg

1489 mm of Hg

700 mm of Hg

12. Number of atoms in 558.5 g of Fe (At. Mass of Fe = 55.85 g mole¯¹) is

Half that in 8 g of He

6.022 x 10²²

Twice that in 60 g carbon

558.5 x 6.022 x 10²³

13. Current strength measure by electrometer by each type of ions in mass spectrometry shows?

Mass

Number of isotopes

Relative abundance

Charge

14. 4.4 g of CO₂ contains how many liters of CO₂ at STP?

44 liter

2.24 liter

22.4 liter

2.4 liter

15. The total number of lattice arrangements in different crystal system is

7.0

8.0

3.0

16. 3.2 g of oxygen (At. Wt. = 16) and 0.2 g of hydrogen (At. Wt. = 1) are placed in a 1.12 L flask at 0°C. The total pressure of the gas mixture will be

4 atm

1 atm

2 atm

3 atm

17. Which of the following pairs do not form a dative covalent bond to each other?

NH₃ and BF₃

NH₃ and H⁺

CH₄ and AlCl₃

H₂O and H⁺

18. At STP, a container has 1 mole of Ar, 2 moles of CO₂, 3 moles of O₂ and 4 moles of N₂, Without changing the total pressure if one mole of O₂ is removed, the partial pressure of O₂

Is halved

Is unchanged

Change by 33%

Is changed by about 26%

19. The crystal structure having face centered cubic arrangement is

CsCl

CuCl

BaCl₂

NaCl

20. In forming an ionic bond in potassium fluoride, the potassium ion

Gets a single negative charge

Gets a double positive charge

Gets a double negative charge

Gets a single positive charge

21. The phenomenon in which a compound exists in two or more crystalline forms is called

Anisotropy

Isomorphism

Allotropy

Polymorphism

22. In a cubic lattice, a unit cell is shared equally by how many unit cells?

23. The volume in liters of CO₂ liberated at STP when 10 grams of 90% pure limestone is heated completely is

20.16

22.4

2.24

2.016

24. When the following reaction equations is properly balanced, the number of moles of O₂ will be
C₃H₈ + O₂ → CO₂ + H₂O

3 moles

10 moles

3.5 moles

1.5 moles

25. The deviation of a gas from ideal behavior is maximum at

0°C and 2.0 atm

-10°C and 2.0 atm

100°C and 2.0 atm

-10°C and 5.0 atm

Page 2 of 6

26. Bragg’s law is given by equation

nλ = 2 d sin θ

nλ = 2 θ sin θ

nλ = 1/2d sin θ

2nλ = d sin θ

27. A solid may be made up of

Molecules

Atoms

Ions

A, B and C

28. The relative atomic mass of chlorine is 35.5. What is the m ass of 2 moles of chlorine gas?

18.75g

142g

35.5g

71g

29. Which of the following contain maximum number of atoms?

6 moles of S

20 moles of S8

44.8 dm3 CO₂ at S.T.P

5.0 moles of SO₂

30. A semiconductor of Ge can be made p-type by adding

Pentavalent impurity

Tetravalent

Divalent impurity

Trivalent impurity

31. Fluted filter paper is used for

Filtering the hot saturated solution

Increasing the rate of filtration

To dissolve large amount of substance at its boiling point

To avoid premature crystallization of the solute

32. The kinetic energy of 4 moles of nitrogen gas at 127°C is? cals. (R = 2 cal mol¯¹ K¯¹)

1524

3200

4400

4800

33. Isotopes differ in

Properties which depend upon mass

Arrangement of electrons in orbitals

The extent to which they may be affected in electron magnetic field

Chemical properties

34. Simple molecules or giant macromolecules are examples of

Diatic bond

Ionic compounds

Metallic bonds

Covalent bonds

35. Which of the following statements is (are correct)?

A unit cell of an ionic crystal shares some of its ions with other unit cells.

None of these

A metal that crystallizes in BCC structure has coordination number equal to 12

The coordination number of each type of ion in CsCl crystal is 8.

36. The ratio of close packed atoms to tetrahedral holes in cubic close packing is

1 : 1

2 : 1

1 : 3

1 : 2

37. Which of the following statements about graphite is not true?

The layers in graphite are attracted to each other by weak forces

The carbon atoms are arranged layers

The coordination number of carbon atoms is 4

The carbon atoms use only three of their four outer electrons for covalent bonding

38. Which of the following are more temperature sensitive?

None of these

Ionic crystals

Solid crystals

Liquid crystals

39. The major binding force of diamond, silicon and quartz is

Electrostatic force

Electrical attraction

Non covalent bond force

Covalent bond

40. Crystal can be classified in to _______ basic crystal habits

41. How many Cl¯ ions are there around Na⁺ ion in NaCl crystal?

42. Correct order of intermolecular forces

Gas < liquid < solid

Gas = liquid = solid

Liquid < gas < solid

Gas < liquid < solid

43. Which of the following crystal does not possess the cubic closed packed arrangement?

HgS

Agl

Csl

Cul

44. Coordination number of Zn and ZnS (Zinc blends) is

None of these

45. The number of atoms contained in 11.2 L of SO₂ at S.T.P. are

6.02 x 10²³

2 x 6.02 x 10²³

4 x 6.02 x 10²³

3/2 x 6.02 x 10²³

46. ‘x’ grams of calcium carbonate was completely burnt in air. The weight of the solid residue formed is 28 g. What is the value of ‘x’ in grams?

150

200

47. In case of elements the polymorphism is called

Crystalline forms

Isomorphism

Isotopic form

Allotropy

48. Isomorphic substances have

Different physical and chemical properties

Different physical and same chemical properties

Same physical and different chemical properties

Same physical and chemical properties

49. If the four tubes of a car are filled to the same pressure with N₂, O₂, H₂ and helium separately, then which one will be filled first

H₂

O₂

N₂

50. Distribution law is employed in which one of the following

All

Crystallization

Chromatography

Solvent extraction

Page 3 of 6

51. Which solids are called true solids?

Crystalline

Vitreous

Amorphous

Metallic

52. A real gas most closely approaches the behavior of an ideal gas at

0.5 atm, and 500 K

15 atm, and 200 K

15 tm, and 500 K

1 atm, and 273 K

53. A bottle of copper (II) oxide has been contaminated with some solid, NaCl, How can NaCl be removed from the Copper (II) oxide?

Heat the mixture and allow it to cool

Place the mixture in a separating funnel

Add water to the mixture and filter

Add dilute acid to the mixture and filter

54. An organic compound contains 49.3% carbon, 6.84% hydrogen and its vapour density is 73. Molecular formula of compound is

C₆H₁₀O₄

C₄H₁₀O₂

C₃H₅O₂

C₃H₁₀O₂

55. A malleable solid is one which can be

All of these

Melted easily

Converted into wires

Converted into sheets

56. In diamond, the carbon atoms are arranged in a

Altahydral manner

Square planner manner

Hexagonal manner

Tetrahedral manner

57. The example of hexagonal system is

Diamond

Sulphur

Sugar

Graphite

58. Hydrogen diffuses six times faster than gas A. The molar mass gas of gas A is

59. The phenomenon in which a single substance exist in two or more crystalline forms is called

Anisotropy

Polymorphism

Isomorphism

Allotropy

60. Solvents of covalent compounds include all but

Water

Alcohol

Petrol

Tetra chloromethane

61. If rate of diffusion of A is 5 times that of B, what will be the density ratio of A and B?

1/5

1/25

62. Gases deviate from ideal behavior at high pressure. Which of the following is correct for non – ideality?

At high pressure, the collisions between the gas molecules are increased manifold

At high pressure, the gas molecules move in one direction only

A high pressure, the volume of the gas becomes insignificant

At high pressure, the intermolecular attraction becomes significant

63. In which process solid phase and vapour phase are directly involved?

Sublimation

Condensation

Filtration

Vaporization

64. Which forms metallic crystals?

SO₂

NH₄Cl

NaCl

65. The material possessing superconducting properties is

Y B₂Cu₃O₇

Y Ba₂Cu₃O₇

Hg Be₂Ca₂Cu₂O₈

Yb Ba₂Cu₂O₈

66. The top of funnel stem should touch the side of the beaker because

This gives bigger size crystals

The filtrate is quick

Filtrate runs down without crystals

This gives medium size crystals

67. Amorphous substance posses

No definite geometry

All of these

No definite heat of fusion

No sharp melting points

68. In the equation PV = nRT which one cannot be numerically equal to R

8.31 x 10⁷ dynes Cm K¯¹ mol¯¹

8.31 JK¯¹ mol¯¹

8.31 L atm K¯¹ mol¯¹

8.31 x 10⁷ erg³ K¯¹ mol¯¹

69. Which of the following substance is amorphous in nature?

Graphite

Plastic

Sugar

Kcl

70. Triple point of water is

373 K

273 K

193 K

203 K

71. Which of the following equations represents the 2nd ionization energy of Na?

Na(g) → N²⁺ (g) + e¯

Na(s) → N²⁺ (g) + 2e¯

Na(g) → N²⁺ (g) + +¯

Na(s) → N²⁺ (g) + e¯

72. 50dm³ of CO is burnt completely according to reaction 2CO + O₂ – 2CO₂ Choose the correct statement

Volume of CO₂ formed is 25 dm³

Volume of CO₂ formed is 60 dm³

Volume of O₂ required is 50 dm³

Volume of O₂ required is 25 dm³

73. Which of the following techniques is a type paper chromatography in which solvent is in a pool at the bottom of the vessel?

Ascending paper chromatography

Liquid gas chromatography

Descending paper chromatography

Liquid solid chromatography

74. The mass of one mole of electron is

1.673 mg

0.55 mg

1.008 mg

0.104 mg

75. If we consider that 1/6, in place of 1/12, mass of carbon atom is taken to be the relative atomic mass unit, the mass of one mole of substance will

Decrease twice

Remains unchanged

Increase two fold

Be a function of the molecular mass of substance

Page 4 of 6

76. Which of the following statements about amorphous solids is incorrect?

They melt over a range of temperature

There are rigid and in-compressible

They are anisotropic

There is no orderly arrangement of particles

77. The reaction 4NH₃ + 3O₂ → 2N₂ + 6H₂O indicates that

For the complete reaction of 2 mole of NH₃ 20g of O₂ are required

One mole of NH₃ will produce ½ mole of N₂

One mole of NH₃ will produce 6 moles of N₂

For the complete reaction of 2 moles of NH₃ 40g of O₂ are required

78. The body centered cubic arrangement is found in the crystal of

AgBr

NH₄Br

CuBr

CsBr

79. The most efficient solvent extraction method is by using

Single extraction and small portion of solvent

Repeated extraction and large portion of solvent

Repeated extraction and small portion of solvent

Single extraction and large portion of solvent

80. The vapour density of a gas is 11.2. The volume occupied by 11.2 g of this gas at N.T.P. is

22.4 liters

11.2 liters

1 liter

2.24 liters

81. Which is distilled first?

Liquid N₂

Liquid H₂

Liquid O₂

Liquid CO₂

82. Amorphous solids

Can possess small regions of orderly arrangement of atoms

Have perfect arrangement of atoms

Have sharp melting point

Undergo clean cleave when cut with knife

83. The rate of diffusion of a gas is proportional to

None of these

P/d

P/√d

√P/d

84. In crystal structure of sodium chloride, the arrangement of Cl ions is

Both fcc and bcc

Fcc

Bcc

None of these

85. Two moles of an ideal gas at 1 atm are compressed to 2 atm at 273 K. The enthalpy change for the process is

1 liter atm

3 liter atm

2 liter atm

Zero

86. Which one is not usually used for the crystallization?

Acetic acid

Sulphuric acid

Acetone

Chloroform

87. Which one of the following pair of atoms is most likely to from an ionic bond?

Na and F

N and F

C and F

O and F

88. The pure crystalline substance on being heated gradually first forms a turbid liquid at constant temperature and still at higher temperature turbidity completely disappears. The behavior is a characteristic of substance forming

Isomeric crystals

Liquid Crystals

Isomorphous crystals

Allotropic crystal

89. Which of the following is an example of body centered cube?

Copper

Magneisum

Zinc

Sodium

90. Gooch crucible is used for the filtration of precipitates having

High solubility

Low temperature

High concentration

High ignition temperature

91. A compound formed by elements X and Y crystallizes in a cubic structure in which the X atoms are at the corners of a cube and the Y atoms are at the face-centered. The formula of the compound is

XY₂

XT₃

X₃Y

92. Ice is ________ crystal

Ionic

Molecular

Metallic

Covalent

93. When one of the following statements is wrong for gases?

Confined gas exerts uniform pressure on the walls of its container in all directions

Volume of the gas is equal to volume of container confining the gas

Gases do not have a definite shape and volume

Mass of gas cannot be determined by weighing a container in which it is enclosed

94. What is the concentration of nitrate ions, if equal volumes of 0.1 M AgNO₃ and 0.1 M NaCl are mixed together?

0.2 M

0.05 M

0.25 M

0.1 M

95. Potassium crystallizes with a

Ortho rhombic lattice

Cubic lattice

Orthogonal lattice

Triclinic

96. The surface formed by the breakage of a crystal is called _________ plane.

Unit

Cleavage

Crystal

None

97. Half atmospheric pressure is

101.325 Pa

400 torr

50 662 Pa

8.5 Pounds

98. Glass is a

Super-cooled liquid

Gel

Micro-crystalline solid

None of these

99. The introduction of Kelvin scale in thermometry is according to

Graham’s law

Dalton’s law

Boyle’s law

Charles’ law

100. Which is trigonal crystal?

CaSO₄.2H₂O

NaNO₃

MgSO₄

All

Page 5 of 6

101. Air at sea level is dense. This is a practical application of

Avogadro’s law

Boyle’s law

Charles’ law

Dalton’s law

102. Crystalline solids can be identified easily by their

All of these

Definite geometry

Transition temperature

Sharp m.P

103. To prepare the medium sized crystal the hot filtrate is cooled

Slowly

Fast

Moderately

None

104. Isomorphic substance have

Different physical and chemical properties

Same physical and difference chemical properties

Different physical and same chemical properties

Same physical and chemical properties

105. When the temperature is raised, the viscosity of the liquid decreases. This is because of

Increase in temperature increases the average kinetic energy of molecules which overcome the attractive force between them

Decreased volume of the solution

Decreased covalent and hydrogen bond forces

Increased attraction between the molecules

106. Which one is not the partial pressure of oxygen in air

159 g/m³

159 torr

159 mm Hg.

159 g/Cm²

107. Under what conditions real gases deviate from ideal behavior

High pressure

Both b and c

Low temperature

High temperature

108. 100 g of CaCO₃ is treated with 1 liter of 1 NHCl. What would be the weight of CO₂ liberated after the completion of the reaction?

33 g

22 g

5.5 g

11 g

109. Solvent extraction is mostly applied to separate

Organic compounds

Both A and B

None of these

Inorganic compounds

110. In which of the following compounds H – bonding is not present?

Ammonia

Ether

Water

Ethanol

111. The existence of a substance in more than one solid modification is known as

None of these

Amorphism

Isomorphism

Polymorphism

112. Formation of a cation is?

Oxidation

None

Reduction

Redox

113. Which of the following metal oxides is anti-ferromagnetic in nature?

NO₂

TiO₂

CrO₂

MnO₂

114. The total number of protons in 10 g of calcium carbonate in (N₀ = 6.023 x 10²³)

4.0956 x 10 ²⁴

1.5057 x 10 ²⁴

3.0115 x 10 ²⁴

2.0478 x 10 ²⁴

115. Wt. of 112 ml of oxygen at STP on liquefaction would be

0.96 g

0.64 g

0.16 g

0.32 g

116. A solution of 10 mL of M/10 FeSO₄ was titrated with KMnO₄ solution in acidic medium, the amount of KMnO₄ used will be

10 mL of 0.1 M

10 mL of 0.5 M

5 mL of 0.1 M

10 mL of 0.02 M

117. Which one is not postulated in the kinetic molecular theory among the followings?

The volume of the molecules is negligible as compared to volume occupied by the gas

Molecules are in chaotic motion

Molecules of all the gases have same size and same mass

All molecular collisions are elastic

118. Crystalline solids can be identified easily from their

Definite geometry

Sharp melting point

Colour

Transition temperature

119. Which of the following is a pseudo solid?

All these

Glass

NaCl

CaF₂

120. Which of the following statement is correct if the intermolecular forces in liquids A, B and C are in the order A < B < C?

B evaporates less readily than C

B evaporates more readily than A

A evaporates more readily than C

A and B evaporates at the same rate

121. The molar volume of CO₂ is maximum at

127°C and 1 atm

0°C and 2 atm

S.T.P (0°C and 1 atm)

273°C and 2 atm

122. Crystals can be classified into

3 crystal systems

14 crystal systems

4 crystal systems

7 crystal systems

123. Graphite is a good conductor of electricity due to the presence of ________.

Free valence electrons

Ione pair of electrons

Anions

Cations

124. The following statements contained in a student’s laboratory report is a conclusion

Oxide of the gas is strongly acidic

A gas is liberated

Colour of the gas is greenish yellow

The gas is chlorine

125. Which of the following is isotropic

Borax

Brass

Mercury

Graphite

Page 6 of 6

126. Particles that most effects material properties

Electrons

Protons

Neutrons

Valence electrons

127. The allotropic forms of an element are called

Unit Cell

Allotropes

Isoelectronic

Cleavage

128. The ratio of most probable velocity to that of average velocity is

2/√π

2/π

√π/2

π/2

129. Which of the following does not represent a type of crystal system?

Isotropical

Monoclinic

Rhombohedral

Triclinic

130. The weight of one molecule of a compound C₆₀H₁₂₂ is

3.72 x 10¯²³ g

5.01 x 10¯²¹ g

1.3 x 10¯²⁰ g

1.4 x 10¯²¹ g

131. How many allotropic forms are present in carbon?

Four

Five

Two

Three

132. What is the relative rate of effusion of CO and CO₂?

CO is 1.25 times faster than CO₂

CO is 3.75 times faster than CO₂

Both diffused at the same time

CO₂ is 1.25 times faster than CO

133. The increasing vapour caused by heating a liquid is due to

Increase of intermolecular interactions

Increase of K.E of molecules

Decrease of surface tension

Increase in potential energy of molecules

134. Van der Waal’s forces exist in

Non-polar

All types of atoms and molecules

Polar compounds

Covalent

135. The molecules of air don’t settle down. The is due to

Non-polar nature of gases

Pressure of dust particles in air

Different molar mass

Elastic collisions of gas molecules

136. The insoluble impurities in the saturated solution are removed by

None

Both A & B

Fluted filter paper

Normal filter paper

137. For c coordination number of four, anion sits at the center of ________ where corners are occupied by cations

Tetrahedron

Triangle

Octahedron

Cube

138. The beaker contains slurry of ice and water, the three thermometers Fahrenheit, Kelvin and centigrade placed in it. The thermometers are represented as A, B and C respectively. On which thermometer the lowest reading will be?

A and C have same reading and are less then B

139. Among solids, the highest melting point is exhibited by

Pseudo solids

Molecular solids

Covalent solids

Ionic solids

140. The M.P of ice at Kelvin scale is 237K° and B.P of water is 373 K. This is a known fact that the molar volumes of different gases at S.T.P are

About the same as the molar volumes of liquids

Much larger than the molar volumes of liquids and solids

Little bit less than the molar volumes of solids

Little bit greater than the molar volumes of liquid

141. Mean distance between atoms in the range of

0.025 nm

0.25 nm

2.5 nm

25 nm

142. Repeatable entity of a crystal structure is known as

Crystal

Miller indices

Lattice

Unit cell

143. At constant temperature, the pressure of an ideal gas is doubled, its density becomes

Double

Same

Half

None

144. a ≠ b ≠ c, ∞ ≠ β ≠ r ≠ 90 is representation of

Trigonal

Monoclimic

Triclimic

Mexagonal

145. Super conductors are derived from compounds of

Actinides

Transition elements

p-block elements

Lanthanides

146. Which of the following has least mass?

1 mole of S

3 x 10²³ atoms of C

2 gram atom of nitrogen

7.0 g of Ag.

147. Consider the physical properties of the gases. Which of the following statements about particles of gasses is incorrect? The particles are

Causing pressure

Randomly moving

Having wide spaces

Orderly arranged

148. Poor conductors of electricity is a characteristic of

Metallic compounds

Diatic bonds

Covalent compounds

Ionic compounds

149. Pressure remaining constant at which temperature the volume of a gas will become twice o what it is at 0°C

546 °C

200 °C

0 K

546 K

150. Amorphous substances possess

Sharp B.P.

Sharp melting points

No definite heat of fusion

Definite heat of fusion

More Related Resources

Punjab 11th Class Chemistry Chapter... 11th Class Chemistry Chapter 4 Liqu... NTS Chemistry Important Mcqs with a... PPSC Test Syllabus for Chemistry Le... KPK 11th Class Chemistry Chapter 6 ... FBISE 9th Class Chemistry Chapter 5... KPK 9th Class Chemistry Chapter 5 P... Punjab Chemistry Online 9th Class T... Punjab Chemistry Online Test 11th C... Punjab Chemistry Online Test 11th C...

Can't find what you're looking for? Search below:

Latest Updates

NTS Chemistry Important Mcqs with answers
PPSC Test Syllabus for Chemistry Lecturer Jobs 2026
Punjab Chemistry Online 9th Class Test Lesson 1 Fundamentals of C...
Punjab Chemistry Online Test 11th Class Model Paper Chapter No 1 ...
Punjab Chemistry Online Test 11th Class Model Paper Chapter No 2 ...
Punjab Chemistry Online Test 11th Class Model Paper Chapter No 3 ...

Malik TahirLast Updated: October 14, 2025

3 Comments

Rehan Siddique says:

July 30, 2022 at 12:49 pm

It might be a good place for students to learn something new and different

irfan ali says:

May 21, 2022 at 12:22 pm

i am live in kunri pak i give a test for entry test

irfan ali says:

May 21, 2022 at 12:21 pm

i am live in kunri pak

Important Chemistry Solids Question and Answer

Chemistry Solids Practice Test Online With Explanation

Chemistry

More Related Resources

Latest Updates

Malik Tahir

3 Comments

Leave a Reply Cancel reply