Chemistry Liquids and Solids Online Mcqs Test

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Question 1

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

Answer

Pseudo solids

Answer

Molecular solids

Answer

Covalent solids

Answer

Ionic solids

Question 2

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

Question 3

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

Question 4

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

Answer

Moderately

Question 5

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

Question 6

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

Question 7

7. 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

Answer

Be a function of the molecular mass of substance

Answer

Increase two fold

Answer

Remains unchanged

Answer

Decrease twice

Question 8

8. Simple molecules or giant macromolecules are examples of

Answer

Covalent bonds

Answer

Metallic bonds

Answer

Diatic bond

Answer

Ionic compounds

Question 9

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

Question 10

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

Answer

The filtrate is quick

Answer

This gives bigger size crystals

Answer

This gives medium size crystals

Answer

Filtrate runs down without crystals

Question 11

11. Van der Waal’s forces exist in

Answer

All types of atoms and molecules

Answer

Polar compounds

Question 12

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

Answer

Filtration

Answer

Condensation

Answer

Sublimation

Answer

Vaporization

Question 13

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

Question 14

14. Mean distance between atoms in the range of

Question 15

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

Answer

Monoclinic

Answer

Tetragonal

Question 16

16. 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 17

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

Answer

Octahedron

Answer

Tetrahedron

Question 18

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

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 carbon atoms are arranged layers

Answer

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

Question 19

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

Answer

ZnS type structure

Answer

CsCl type structure

Answer

AB₂ type ionic compound

Answer

NaCl type structure

Question 20

20. Amorphous solids

Answer

Undergo clean cleave when cut with knife

Answer

Have perfect arrangement of atoms

Answer

Can possess small regions of orderly arrangement of atoms

Answer

Have sharp melting point

Question 21

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

Answer

Gets a single negative charge

Answer

Gets a double positive charge

Answer

Gets a single positive charge

Answer

Gets a double negative charge

Question 22

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

Answer

Different molar mass

Answer

Pressure of dust particles in air

Answer

Elastic collisions of gas molecules

Answer

Non-polar nature of gases

Question 23

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

Answer

Polymorphism

Answer

Anisotropy

Answer

Isomorphism

Question 24

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

Answer

Molecules are in chaotic motion

Answer

Molecules of all the gases have same size and same mass

Answer

All molecular collisions are elastic

Answer

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

Question 25

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

Answer

None of these

Question 26

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

Answer

CO is 1.25 times faster than CO₂

Answer

CO is 3.75 times faster than CO₂

Answer

Both diffused at the same time

Answer

CO₂ is 1.25 times faster than CO

Question 27

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

Answer

Chloroform

Answer

Acetic acid

Answer

Sulphuric acid

Question 28

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

Question 29

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

Answer

Fluted filter paper

Answer

Normal filter paper

Answer

Both A & B

Question 30

30. 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

Isomorphous crystals

Answer

Liquid Crystals

Answer

Isomeric crystals

Answer

Allotropic crystal

Question 31

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

Answer

Both fcc and bcc

Answer

None of these

Question 32

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

Answer

159 mm Hg.

Answer

159 g/Cm²

Question 33

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

Question 34

34. 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 35

35. Potassium crystallizes with a

Answer

Orthogonal lattice

Answer

Cubic lattice

Answer

Ortho rhombic lattice

Question 36

36. The example of hexagonal system is

Question 37

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

Answer

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

Answer

Increased attraction between the molecules

Answer

Decreased covalent and hydrogen bond forces

Answer

Decreased volume of the solution

Question 38

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

Answer

Decrease of surface tension

Answer

Increase of K.E of molecules

Answer

Increase in potential energy of molecules

Answer

Increase of intermolecular interactions

Question 39

39. Ionic solids are characterized by

Answer

Solubility in polar solvents

Answer

Low melting points

Answer

Good conductivity in solid state

Answer

High vapour pressures

Question 40

40. How many allotropic forms are present in carbon?

Question 41

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

Answer

22.4 liters

Answer

2.24 liters

Answer

11.2 liters

Question 42

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

Question 43

43. Amorphous substance posses

Answer

No sharp melting points

Answer

All of these

Answer

No definite heat of fusion

Answer

No definite geometry

Question 44

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

Question 45

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

Answer

One mole of NH₃ will produce 6 moles of N₂

Answer

One mole of NH₃ will produce ½ mole of N₂

Answer

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

Answer

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

Question 46

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

Answer

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

Answer

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

Answer

None of these

Answer

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

Question 47

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

Answer

Avogadro’s law

Answer

Charles’ law

Answer

Boyle’s law

Answer

Dalton’s law

Question 48

48. Particles that most effects material properties

Answer

Valence electrons

Question 49

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

Answer

There is no orderly arrangement of particles

Answer

They are anisotropic

Answer

They melt over a range of temperature

Answer

There are rigid and in-compressible

Question 50

50. Triple point of water is

Question 51

51. The crystal structure having face centered cubic arrangement is

Question 52

52. Which of the following has least mass?

Answer

2 gram atom of nitrogen

Answer

3 x 10²³ atoms of C

Answer

1 mole of S

Answer

7.0 g of Ag.

Question 53

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

Answer

-10°C and 2.0 atm

Answer

100°C and 2.0 atm

Answer

0°C and 2.0 atm

Answer

-10°C and 5.0 atm

Question 54

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

Answer

3.72 x 10¯²³ g

Answer

1.3 x 10¯²⁰ g

Answer

1.4 x 10¯²¹ g

Answer

5.01 x 10¯²¹ g

Question 55

55. Crystals can be classified into

Answer

7 crystal systems

Answer

14 crystal systems

Answer

4 crystal systems

Answer

3 crystal systems

Question 56

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

Answer

Crystallization

Answer

Chromatography

Answer

Solvent extraction

Question 57

57. In case of elements the polymorphism is called

Answer

Crystalline forms

Answer

Isomorphism

Answer

Isotopic form

Question 58

58. A solid may be made up of

Answer

A, B and C

Question 59

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

Answer

Non covalent bond force

Answer

Electrical attraction

Answer

Covalent bond

Answer

Electrostatic force

Question 60

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

Question 61

61. A malleable solid is one which can be

Answer

Melted easily

Answer

Converted into wires

Answer

Converted into sheets

Answer

All of these

Question 62

62. Repeatable entity of a crystal structure is known as

Answer

Miller indices

Question 63

63. Isomorphic substance have

Answer

Same physical and chemical properties

Answer

Different physical and same chemical properties

Answer

Same physical and difference chemical properties

Answer

Different physical and chemical properties

Question 64

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

Answer

High solubility

Answer

High ignition temperature

Answer

Low temperature

Answer

High concentration

Answer 153

Ione pair of electrons

Answer 154

Free valence electrons

Answer 155

2 liter atm

Answer 156

3 liter atm

Answer 157

1 liter atm

Answer 158

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

Answer 159

At high pressure, the intermolecular attraction becomes significant

Answer 160

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

Answer 161

A high pressure, the volume of the gas becomes insignificant

Answer 162

Solid crystals

Answer 163

Liquid crystals

Answer 164

None of these

Answer 165

Ionic crystals

Answer 166

Yb Ba₂Cu₂O₈

Answer 167

Y Ba₂Cu₃O₇

Answer 168

Y B₂Cu₃O₇

Answer 169

Hg Be₂Ca₂Cu₂O₈

Answer 170

Oxide of the gas is strongly acidic

Answer 171

Colour of the gas is greenish yellow

Answer 172

The gas is chlorine

Answer 173

A gas is liberated

Answer 174

Liquid O₂

Answer 175

Liquid N₂

Answer 176

Liquid CO₂

Answer 177

Liquid H₂

Answer 178

Repeated extraction and small portion of solvent

Answer 179

Repeated extraction and large portion of solvent

Answer 180

Single extraction and small portion of solvent

Answer 181

Single extraction and large portion of solvent

Answer 182

22.4 liter

Answer 183

2.24 liter

Answer 184

Micro-crystalline solid

Answer 185

None of these

Answer 186

Super-cooled liquid

Answer 187

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

Answer 188

Properties which depend upon mass

Answer 189

Chemical properties

Answer 190

Arrangement of electrons in orbitals

Answer 191

Liquid gas chromatography

Answer 192

Liquid solid chromatography

Answer 193

Descending paper chromatography

Answer 194

Ascending paper chromatography

Answer 195

Definite geometry

Answer 196

Transition temperature

Answer 197

Sharp melting point

Answer 198

Randomly moving

Answer 199

Causing pressure

Answer 200

Orderly arranged

Answer 201

Having wide spaces

Answer 202

Crystalline

Answer 203

Trivalent impurity

Answer 204

Divalent impurity

Answer 205

Tetravalent

Answer 206

Pentavalent impurity

Answer 207

Relative abundance

Answer 208

Number of isotopes

Answer 209

Hexagonal manner

Answer 210

Altahydral manner

Answer 211

Tetrahedral manner

Answer 212

Square planner manner

Answer 213

1.5057 x 10 ²⁴

Answer 214

4.0956 x 10 ²⁴

Answer 215

3.0115 x 10 ²⁴

Answer 216

2.0478 x 10 ²⁴

Answer 217

101.325 Pa

Answer 218

8.5 Pounds

Answer 219

Transition temperature

Answer 220

Definite geometry

Answer 221

All of these

Answer 222

10 mL of 0.5 M

Answer 223

5 mL of 0.1 M

Answer 224

10 mL of 0.02 M

Answer 225

10 mL of 0.1 M

Answer 226

A and C have same reading and are less then B

Answer 227

Isoelectronic

Answer 228

Allotropes

Answer 229

Na(s) → N²⁺ (g) + e¯

Answer 230

Na(s) → N²⁺ (g) + 2e¯

Answer 231

Na(g) → N²⁺ (g) + e¯

Answer 232

Na(g) → N²⁺ (g) + +¯

Answer 233

Boyle’s law

Answer 234

Dalton’s law

Answer 235

Charles’ law

Answer 236

Graham’s law

Answer 237

None of these

Answer 238

Tetra chloromethane

Answer 239

Gas < liquid < solid

Answer 240

Gas = liquid = solid

Answer 241

Liquid < gas < solid

Answer 242

Gas < liquid < solid

Answer 243

5.0 moles of SO₂

Answer 244

20 moles of S8

Answer 245

6 moles of S

Answer 246

44.8 dm3 CO₂ at S.T.P

Answer 247

Monoclimic

Answer 248

Is unchanged

Answer 249

Is changed by about 26%

Answer 250

Change by 33%

Answer 251

nλ = 2 d sin θ

Answer 252

nλ = 1/2d sin θ

Answer 253

nλ = 2 θ sin θ

Answer 254

2nλ = d sin θ

Answer 255

127°C and 1 atm

Answer 256

S.T.P (0°C and 1 atm)

Answer 257

273°C and 2 atm

Answer 258

0°C and 2 atm

Answer 259

None of these

Answer 260

Polymorphism

Answer 261

Isomorphism

Answer 262

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

Answer 263

He will feel warmth

Answer 264

His blood pressure will increase

Answer 265

He will feel cool

Answer 266

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

Answer 267

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

Answer 268

Gases do not have a definite shape and volume

Answer 269

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

Answer 270

C₆H₁₀O₄

Answer 271

C₄H₁₀O₂

Answer 272

C₃H₁₀O₂

Answer 273

C₃H₅O₂

Answer 274

1489 mm of Hg

Answer 275

700 mm of Hg

Answer 276

100 mm of Hg

Answer 277

790 mm of Hg

Answer 278

Both b and c

Answer 279

Low temperature

Answer 280

High temperature

Answer 281

High pressure

Answer 282

558.5 x 6.022 x 10²³

Answer 283

Half that in 8 g of He

Answer 284

6.022 x 10²²

Answer 285

Twice that in 60 g carbon

Answer 286

p-block elements

Answer 287

Transition elements

Answer 288

Lanthanides

Answer 289

Ionic compounds

Answer 290

Diatic bonds

Answer 291

Covalent compounds

Answer 292

Metallic compounds

Answer 293

Much larger than the molar volumes of liquids and solids

Answer 294

Little bit greater than the molar volumes of liquid

Answer 295

About the same as the molar volumes of liquids

Answer 296

Little bit less than the molar volumes of solids

Answer 297

Same physical and chemical properties

Answer 298

Same physical and different chemical properties

Answer 299

Different physical and same chemical properties

Answer 300

Different physical and chemical properties

Answer 301

Rhombohedral

Answer 302

Isotropical

Answer 303

Monoclinic

Answer 304

Isomorphism

Answer 305

Anisotropy

Answer 306

Polymorphism

Answer 307

CH₄ and AlCl₃

Answer 308

NH₃ and H⁺

Answer 309

NH₃ and BF₃

Answer 310

H₂O and H⁺

Answer 311

15 atm, and 200 K

Answer 312

0.5 atm, and 500 K

Answer 313

1 atm, and 273 K

Answer 314

15 tm, and 500 K

Answer 315

Heat the mixture and allow it to cool

Answer 316

Add dilute acid to the mixture and filter

Answer 317

Place the mixture in a separating funnel

Answer 318

Add water to the mixture and filter

Answer 319

Volume of O₂ required is 50 dm³

Answer 320

Volume of CO₂ formed is 25 dm³

Answer 321

Volume of O₂ required is 25 dm³

Answer 322

Volume of CO₂ formed is 60 dm³

Answer 323

To avoid premature crystallization of the solute

Answer 324

Filtering the hot saturated solution

Answer 325

Increasing the rate of filtration

Answer 326

To dissolve large amount of substance at its boiling point

Answer 327

8.31 x 10⁷ dynes Cm K¯¹ mol¯¹

Answer 328

8.31 L atm K¯¹ mol¯¹

Answer 329

8.31 x 10⁷ erg³ K¯¹ mol¯¹

Answer 330

8.31 JK¯¹ mol¯¹

Answer 331

2 x 6.02 x 10²³

Answer 332

6.02 x 10²³

Answer 333

3/2 x 6.02 x 10²³

Answer 334

4 x 6.02 x 10²³

Answer 335

B evaporates less readily than C

Answer 336

A and B evaporates at the same rate

Answer 337

B evaporates more readily than A

Answer 338

A evaporates more readily than C

Answer 339

Definite heat of fusion

Answer 340

Sharp melting points

Answer 341

Sharp B.P.

Answer 342

No definite heat of fusion

Answer 343

CaSO₄.2H₂O

Answer 344

Both A and B

Answer 345

Inorganic compounds

Answer 346

Organic compounds

Answer 347

None of these

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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Important Chemistry Solids Question and Answer

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