Chemistry Liquids and Solids Online Mcqs Test

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Question 1

1. Correct order of intermolecular forces

Answer

Gas = liquid = solid

Answer

Gas < liquid < solid

Answer

Liquid < gas < solid

Answer

Gas < liquid < solid

Question 2

2. Under what conditions real gases deviate from ideal behavior

Answer

Both b and c

Answer

Low temperature

Answer

High temperature

Answer

High pressure

Question 3

3. Amorphous solids

Answer

Undergo clean cleave when cut with knife

Answer

Can possess small regions of orderly arrangement of atoms

Answer

Have sharp melting point

Answer

Have perfect arrangement of atoms

Question 4

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

Answer

Dalton’s law

Answer

Boyle’s law

Answer

Charles’ law

Answer

Graham’s law

Question 5

5. Fluted filter paper is used for

Answer

Increasing the rate of filtration

Answer

To avoid premature crystallization of the solute

Answer

Filtering the hot saturated solution

Answer

To dissolve large amount of substance at its boiling point

Question 6

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

Answer

The carbon atoms are arranged layers

Answer

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

Answer

The coordination number of carbon atoms is 4

Answer

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

Question 7

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

Question 8

8. Formation of a cation is?

Question 9

9. Solvent extraction is mostly applied to separate

Answer

None of these

Answer

Organic compounds

Answer

Inorganic compounds

Answer

Both A and B

Question 10

10. The material possessing superconducting properties is

Answer

Hg Be₂Ca₂Cu₂O₈

Answer

Yb Ba₂Cu₂O₈

Answer

Y B₂Cu₃O₇

Answer

Y Ba₂Cu₃O₇

Question 11

11. Amorphous substance posses

Answer

No definite heat of fusion

Answer

No sharp melting points

Answer

All of these

Answer

No definite geometry

Question 12

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

Answer

558.5 x 6.022 x 10²³

Answer

Twice that in 60 g carbon

Answer

Half that in 8 g of He

Answer

6.022 x 10²²

Question 13

13. Crystalline solids can be identified easily by their

Answer

Transition temperature

Answer

Definite geometry

Answer

All of these

Question 14

14. 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

Answer

Liquid Crystals

Answer

Isomorphous crystals

Answer

Isomeric crystals

Answer

Allotropic crystal

Question 15

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

Question 16

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

Answer

Liquid solid chromatography

Answer

Liquid gas chromatography

Answer

Descending paper chromatography

Answer

Ascending paper chromatography

Question 17

17. 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

Answer

He will feel warmth

Answer

He will feel cool

Answer

His blood pressure will increase

Answer

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

Question 18

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

Answer

None of these

Question 19

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

Answer

ZnS type structure

Answer

AB₂ type ionic compound

Answer

NaCl type structure

Answer

CsCl type structure

Question 20

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

Answer

Vaporization

Answer

Filtration

Answer

Sublimation

Answer

Condensation

Question 21

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

Answer

3 liter atm

Answer

1 liter atm

Answer

2 liter atm

Question 22

22. 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

Question 23

23. Which of the following substances is not amorphous?

Question 24

24. Isotopes differ in

Answer

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

Answer

Chemical properties

Answer

Properties which depend upon mass

Answer

Arrangement of electrons in orbitals

Question 25

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

Question 26

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

Answer

They melt over a range of temperature

Answer

They are anisotropic

Answer

There is no orderly arrangement of particles

Answer

There are rigid and in-compressible

Question 27

27. Amorphous substances possess

Answer

Sharp melting points

Answer

Definite heat of fusion

Answer

Sharp B.P.

Answer

No definite heat of fusion

Question 28

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

Answer

Trivalent impurity

Answer

Divalent impurity

Answer

Tetravalent

Answer

Pentavalent impurity

Question 29

29. 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:

Question 30

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

Answer

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

Answer

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

Answer

Gases do not have a definite shape and volume

Answer

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

Question 31

31. 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

Answer

Change by 33%

Answer

Is changed by about 26%

Answer

Is unchanged

Question 32

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

Question 33

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

Answer

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

Answer

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

Answer

None of these

Answer

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

Question 34

34. 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?

Question 35

35. In case of elements the polymorphism is called

Answer

Isomorphism

Answer

Crystalline forms

Answer

Isotopic form

Question 36

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

Answer

10 mL of 0.5 M

Answer

10 mL of 0.1 M

Answer

10 mL of 0.02 M

Answer

5 mL of 0.1 M

Question 37

37. Triple point of water is

Question 38

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

Question 39

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

Answer

C₆H₁₀O₄

Answer

C₄H₁₀O₂

Answer

C₃H₁₀O₂

Answer

C₃H₅O₂

Question 40

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

Question 41

41. Which is trigonal crystal?

Answer

CaSO₄.2H₂O

Question 42

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

Question 43

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

Question 44

44. Which is distilled first?

Answer

Liquid O₂

Answer

Liquid N₂

Answer

Liquid H₂

Answer

Liquid CO₂

Question 45

45. 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

Answer

Little bit greater than the molar volumes of liquid

Answer

About the same as the molar volumes of liquids

Answer

Much larger than the molar volumes of liquids and solids

Answer

Little bit less than the molar volumes of solids

Question 46

46. The most efficient solvent extraction method is by using

Answer

Single extraction and small portion of solvent

Answer

Repeated extraction and small portion of solvent

Answer

Single extraction and large portion of solvent

Answer

Repeated extraction and large portion of solvent

Question 47

47. Potassium crystallizes with a

Answer

Orthogonal lattice

Answer

Ortho rhombic lattice

Answer

Cubic lattice

Question 48

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

Answer

Monoclinic

Answer

Isotropical

Answer

Rhombohedral

Question 49

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

Question 50

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

Answer

A and B evaporates at the same rate

Answer

A evaporates more readily than C

Answer

B evaporates more readily than A

Answer

B evaporates less readily than C

Question 51

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

Question 52

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

Question 53

53. The example of hexagonal system is

Question 54

54. Which solids are called true solids?

Answer

Crystalline

Question 55

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

Answer

3.0115 x 10 ²⁴

Answer

4.0956 x 10 ²⁴

Answer

1.5057 x 10 ²⁴

Answer

2.0478 x 10 ²⁴

Question 56

56. The molar volume of CO₂ is maximum at

Answer

273°C and 2 atm

Answer

0°C and 2 atm

Answer

127°C and 1 atm

Answer

S.T.P (0°C and 1 atm)

Question 57

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

Answer

Decreased volume of the solution

Answer

Decreased covalent and hydrogen bond forces

Answer

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

Answer

Increased attraction between the molecules

Question 58

58. 4.4 g of CO₂ contains how many liters of CO₂ at STP?

Answer

2.24 liter

Answer

22.4 liter

Question 59

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

Question 60

60. A malleable solid is one which can be

Answer

All of these

Answer

Converted into sheets

Answer

Melted easily

Answer

Converted into wires

Question 61

61. The crystal structure having face centered cubic arrangement is

Question 62

62. Which of the following is a pseudo solid?

Question 63

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

Answer

Isomorphism

Answer

Polymorphism

Answer

None of these

Question 64

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

Answer 151

Isomorphism

Answer 152

Polymorphism

Answer 153

Anisotropy

Answer 154

High solubility

Answer 155

High ignition temperature

Answer 156

High concentration

Answer 157

Low temperature

Answer 158

-10°C and 2.0 atm

Answer 159

0°C and 2.0 atm

Answer 160

100°C and 2.0 atm

Answer 161

-10°C and 5.0 atm

Answer 162

Same physical and difference chemical properties

Answer 163

Same physical and chemical properties

Answer 164

Different physical and same chemical properties

Answer 165

Different physical and chemical properties

Answer 166

1.4 x 10¯²¹ g

Answer 167

5.01 x 10¯²¹ g

Answer 168

1.3 x 10¯²⁰ g

Answer 169

3.72 x 10¯²³ g

Answer 170

1 mole of S

Answer 171

3 x 10²³ atoms of C

Answer 172

7.0 g of Ag.

Answer 173

2 gram atom of nitrogen

Answer 174

A, B and C

Answer 175

Tetrahedron

Answer 176

Octahedron

Answer 177

Tetragonal

Answer 178

Monoclinic

Answer 179

Monoclimic

Answer 180

Gets a single positive charge

Answer 181

Gets a double positive charge

Answer 182

Gets a double negative charge

Answer 183

Gets a single negative charge

Answer 184

0.5 atm, and 500 K

Answer 185

15 tm, and 500 K

Answer 186

1 atm, and 273 K

Answer 187

15 atm, and 200 K

Answer 188

Non covalent bond force

Answer 189

Electrostatic force

Answer 190

Covalent bond

Answer 191

Electrical attraction

Answer 192

Volume of O₂ required is 25 dm³

Answer 193

Volume of CO₂ formed is 25 dm³

Answer 194

Volume of CO₂ formed is 60 dm³

Answer 195

Volume of O₂ required is 50 dm³

Answer 196

One mole of NH₃ will produce 6 moles of N₂

Answer 197

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

Answer 198

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

Answer 199

One mole of NH₃ will produce ½ mole of N₂

Answer 200

p-block elements

Answer 201

Lanthanides

Answer 202

Transition elements

Answer 203

Hexagonal manner

Answer 204

Square planner manner

Answer 205

Altahydral manner

Answer 206

Tetrahedral manner

Answer 207

Sharp melting point

Answer 208

Transition temperature

Answer 209

Definite geometry

Answer 210

Add water to the mixture and filter

Answer 211

Heat the mixture and allow it to cool

Answer 212

Place the mixture in a separating funnel

Answer 213

Add dilute acid to the mixture and filter

Answer 214

101.325 Pa

Answer 215

8.5 Pounds

Answer 216

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

Answer 217

A high pressure, the volume of the gas becomes insignificant

Answer 218

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

Answer 219

At high pressure, the intermolecular attraction becomes significant

Answer 220

Na(s) → N²⁺ (g) + e¯

Answer 221

Na(g) → N²⁺ (g) + e¯

Answer 222

Na(s) → N²⁺ (g) + 2e¯

Answer 223

Na(g) → N²⁺ (g) + +¯

Answer 224

Polar compounds

Answer 225

All types of atoms and molecules

Answer 226

Good conductivity in solid state

Answer 227

Low melting points

Answer 228

Solubility in polar solvents

Answer 229

High vapour pressures

Answer 230

Valence electrons

Answer 231

Oxide of the gas is strongly acidic

Answer 232

The gas is chlorine

Answer 233

Colour of the gas is greenish yellow

Answer 234

A gas is liberated

Answer 235

Be a function of the molecular mass of substance

Answer 236

Increase two fold

Answer 237

Decrease twice

Answer 238

Remains unchanged

Answer 239

Super-cooled liquid

Answer 240

Micro-crystalline solid

Answer 241

None of these

Answer 242

Pseudo solids

Answer 243

Covalent solids

Answer 244

Molecular solids

Answer 245

Ionic solids

Answer 246

Both fcc and bcc

Answer 247

None of these

Answer 248

Molecules of all the gases have same size and same mass

Answer 249

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

Answer 250

All molecular collisions are elastic

Answer 251

Molecules are in chaotic motion

Answer 252

11.2 liters

Answer 253

2.24 liters

Answer 254

22.4 liters

Answer 255

Different physical and chemical properties

Answer 256

Different physical and same chemical properties

Answer 257

Same physical and different chemical properties

Answer 258

Same physical and chemical properties

Answer 259

nλ = 1/2d sin θ

Answer 260

nλ = 2 d sin θ

Answer 261

2nλ = d sin θ

Answer 262

nλ = 2 θ sin θ

Answer 263

6 moles of S

Answer 264

20 moles of S8

Answer 265

5.0 moles of SO₂

Answer 266

44.8 dm3 CO₂ at S.T.P

Answer 267

Fluted filter paper

Answer 268

Normal filter paper

Answer 269

Both A & B

Answer 270

Pressure of dust particles in air

Answer 271

Different molar mass

Answer 272

Elastic collisions of gas molecules

Answer 273

Non-polar nature of gases

Answer 274

4 x 6.02 x 10²³

Answer 275

3/2 x 6.02 x 10²³

Answer 276

6.02 x 10²³

Answer 277

2 x 6.02 x 10²³

Answer 278

Moderately

Answer 279

Relative abundance

Answer 280

Number of isotopes

Answer 281

Miller indices

Answer 282

100 mm of Hg

Answer 283

1489 mm of Hg

Answer 284

790 mm of Hg

Answer 285

700 mm of Hg

Answer 286

Orderly arranged

Answer 287

Having wide spaces

Answer 288

Causing pressure

Answer 289

Randomly moving

Answer 290

Free valence electrons

Answer 291

Ione pair of electrons

Answer 292

Dalton’s law

Answer 293

Avogadro’s law

Answer 294

Boyle’s law

Answer 295

Charles’ law

Answer 296

Increase in potential energy of molecules

Answer 297

Increase of K.E of molecules

Answer 298

Decrease of surface tension

Answer 299

Increase of intermolecular interactions

Answer 300

3 crystal systems

Answer 301

7 crystal systems

Answer 302

4 crystal systems

Answer 303

14 crystal systems

Answer 304

None of these

Answer 305

Diatic bond

Answer 306

Ionic compounds

Answer 307

Metallic bonds

Answer 308

Covalent bonds

Answer 309

A and C have same reading and are less then B

Answer 310

Allotropes

Answer 311

Isoelectronic

Answer 312

NH₃ and BF₃

Answer 313

H₂O and H⁺

Answer 314

NH₃ and H⁺

Answer 315

CH₄ and AlCl₃

Answer 316

Sulphuric acid

Answer 317

Chloroform

Answer 318

Acetic acid

Answer 319

Diatic bonds

Answer 320

Metallic compounds

Answer 321

Ionic compounds

Answer 322

Covalent compounds

Answer 323

Solvent extraction

Answer 324

Chromatography

Answer 325

Crystallization

Answer 326

Tetra chloromethane

Answer 327

Polymorphism

Answer 328

Anisotropy

Answer 329

Isomorphism

Answer 330

159 mm Hg.

Answer 331

159 g/Cm²

Answer 332

Filtrate runs down without crystals

Answer 333

This gives medium size crystals

Answer 334

The filtrate is quick

Answer 335

This gives bigger size crystals

Answer 336

Ionic crystals

Answer 337

Solid crystals

Answer 338

Liquid crystals

Answer 339

None of these

Answer 340

CO is 3.75 times faster than CO₂

Answer 341

CO is 1.25 times faster than CO₂

Answer 342

CO₂ is 1.25 times faster than CO

Answer 343

Both diffused at the same time

Answer 344

8.31 JK¯¹ mol¯¹

Answer 345

8.31 x 10⁷ dynes Cm K¯¹ mol¯¹

Answer 346

8.31 L atm K¯¹ mol¯¹

Answer 347

8.31 x 10⁷ erg³ K¯¹ mol¯¹

Total Questions:	150
Time Allowed:	60 Minutes
Total Marks:	150
How to Attempt Test:	Please choose the right Option in MCQ-type question.
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