Chemistry Liquids and Solids Online Mcqs Test

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Question 1

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

Answer

Monoclinic

Answer

Rhombohedral

Answer

Isotropical

Question 2

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

Answer

H₂O and H⁺

Answer

CH₄ and AlCl₃

Answer

NH₃ and BF₃

Answer

NH₃ and H⁺

Question 3

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

Answer

Isomorphism

Answer

None of these

Answer

Polymorphism

Question 4

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

Answer

Na(s) → N²⁺ (g) + 2e¯

Answer

Na(g) → N²⁺ (g) + +¯

Answer

Na(g) → N²⁺ (g) + e¯

Answer

Na(s) → N²⁺ (g) + e¯

Question 5

5. Amorphous substances possess

Answer

Sharp melting points

Answer

No definite heat of fusion

Answer

Definite heat of fusion

Answer

Sharp B.P.

Question 6

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

Question 7

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

Question 8

8. Particles that most effects material properties

Answer

Valence electrons

Question 9

9. Solvent extraction is mostly applied to separate

Answer

Organic compounds

Answer

Inorganic compounds

Answer

Both A and B

Answer

None of these

Question 10

10. 50dm³ of CO is burnt completely according to reaction 2CO + O₂ – 2CO₂ Choose the correct statement

Answer

Volume of O₂ required is 50 dm³

Answer

Volume of CO₂ formed is 60 dm³

Answer

Volume of CO₂ formed is 25 dm³

Answer

Volume of O₂ required is 25 dm³

Question 11

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

Answer

Moderately

Question 12

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

Question 13

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

Question 14

14. Poor conductors of electricity is a characteristic of

Answer

Diatic bonds

Answer

Covalent compounds

Answer

Ionic compounds

Answer

Metallic compounds

Question 15

15. Half atmospheric pressure is

Answer

101.325 Pa

Answer

8.5 Pounds

Question 16

16. Amorphous substance posses

Answer

No definite geometry

Answer

No sharp melting points

Answer

No definite heat of fusion

Answer

All of these

Question 17

17. 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

11.2 liters

Answer

2.24 liters

Answer

22.4 liters

Question 18

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

Answer

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

Answer

The carbon atoms are arranged layers

Answer

The coordination number of carbon atoms is 4

Answer

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

Question 19

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

Answer

15 atm, and 200 K

Answer

0.5 atm, and 500 K

Answer

15 tm, and 500 K

Answer

1 atm, and 273 K

Question 20

20. Triple point of water is

Question 21

21. 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

Decreased covalent and hydrogen bond forces

Answer

Decreased volume of the solution

Answer

Increased attraction between the molecules

Question 22

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

Answer

6 moles of S

Answer

44.8 dm3 CO₂ at S.T.P

Answer

20 moles of S8

Answer

5.0 moles of SO₂

Question 23

23. 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 24

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

Answer

Both fcc and bcc

Answer

None of these

Question 25

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

Answer

Molecular solids

Answer

Pseudo solids

Answer

Covalent solids

Answer

Ionic solids

Question 26

26. 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 27

27. Crystalline solids can be identified easily by their

Answer

All of these

Answer

Definite geometry

Answer

Transition temperature

Question 28

28. Potassium crystallizes with a

Answer

Cubic lattice

Answer

Ortho rhombic lattice

Answer

Orthogonal lattice

Question 29

29. The example of hexagonal system is

Question 30

30. Which forms metallic crystals?

Question 31

31. 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

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

Answer

His blood pressure will increase

Answer

He will feel warmth

Answer

He will feel cool

Question 32

32. 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?

Answer

A and C have same reading and are less then B

Question 33

33. Which of the following is isotropic

Question 34

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

Answer

1489 mm of Hg

Answer

100 mm of Hg

Answer

790 mm of Hg

Answer

700 mm of Hg

Question 35

35. Which is distilled first?

Answer

Liquid O₂

Answer

Liquid N₂

Answer

Liquid H₂

Answer

Liquid CO₂

Question 36

36. Which of the following is a pseudo solid?

Question 37

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

Answer

Anisotropy

Answer

Polymorphism

Answer

Isomorphism

Question 38

38. 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

Ascending paper chromatography

Answer

Liquid gas chromatography

Answer

Descending paper chromatography

Question 39

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

Answer

None of these

Question 40

40. Simple molecules or giant macromolecules are examples of

Answer

Ionic compounds

Answer

Covalent bonds

Answer

Metallic bonds

Answer

Diatic bond

Question 41

41. The most efficient solvent extraction method is by using

Answer

Single extraction and large portion of solvent

Answer

Single extraction and small portion of solvent

Answer

Repeated extraction and small portion of solvent

Answer

Repeated extraction and large portion of solvent

Question 42

42. Glass is a

Answer

None of these

Answer

Micro-crystalline solid

Answer

Super-cooled liquid

Question 43

43. 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 44

44. Solvents of covalent compounds include all but

Answer

Tetra chloromethane

Question 45

45. Under what conditions real gases deviate from ideal behavior

Answer

Both b and c

Answer

High pressure

Answer

High temperature

Answer

Low temperature

Question 46

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

Question 47

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

Question 48

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

Question 49

49. Mean distance between atoms in the range of

Question 50

50. Which of the following are more temperature sensitive?

Answer

None of these

Answer

Solid crystals

Answer

Ionic crystals

Answer

Liquid crystals

Question 51

51. The crystal structure having face centered cubic arrangement is

Question 52

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

Question 53

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

Question 54

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

Answer

Elastic collisions of gas molecules

Answer

Non-polar nature of gases

Answer

Pressure of dust particles in air

Answer

Different molar mass

Question 55

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

Answer

This gives medium size crystals

Answer

This gives bigger size crystals

Answer

The filtrate is quick

Answer

Filtrate runs down without crystals

Question 56

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

Answer

8.31 x 10⁷ erg³ K¯¹ mol¯¹

Answer

8.31 L atm K¯¹ mol¯¹

Answer

8.31 x 10⁷ dynes Cm K¯¹ mol¯¹

Answer

8.31 JK¯¹ mol¯¹

Question 57

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

Answer

1.5057 x 10 ²⁴

Answer

3.0115 x 10 ²⁴

Answer

4.0956 x 10 ²⁴

Answer

2.0478 x 10 ²⁴

Question 58

58. 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

Much larger than the molar volumes of liquids and solids

Answer

Little bit greater than the molar volumes of liquid

Answer

About the same as the molar volumes of liquids

Answer

Little bit less than the molar volumes of solids

Question 59

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

Answer

Filtration

Answer

Condensation

Answer

Vaporization

Answer

Sublimation

Question 60

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

Answer

Twice that in 60 g carbon

Answer

Half that in 8 g of He

Answer

6.022 x 10²²

Answer

558.5 x 6.022 x 10²³

Question 61

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

Answer

Square planner manner

Answer

Altahydral manner

Answer

Tetrahedral manner

Answer

Hexagonal manner

Question 62

62. Isotopes differ in

Answer

Properties which depend upon mass

Answer

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

Answer

Arrangement of electrons in orbitals

Answer

Chemical properties

Question 63

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

Question 64

64. The molar volume of CO₂ is maximum at

Answer

127°C and 1 atm

Answer

S.T.P (0°C and 1 atm)

Answer

0°C and 2 atm

Answer

273°C and 2 atm

Answer 159

Tetrahedron

Answer 160

Octahedron

Answer 161

Definite geometry

Answer 162

Transition temperature

Answer 163

Sharp melting point

Answer 164

A, B and C

Answer 165

Free valence electrons

Answer 166

Ione pair of electrons

Answer 167

10 mL of 0.02 M

Answer 168

5 mL of 0.1 M

Answer 169

10 mL of 0.5 M

Answer 170

10 mL of 0.1 M

Answer 171

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

Answer 172

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

Answer 173

None of these

Answer 174

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

Answer 175

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

Answer 176

One mole of NH₃ will produce ½ mole of N₂

Answer 177

One mole of NH₃ will produce 6 moles of N₂

Answer 178

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

Answer 179

Both A & B

Answer 180

Fluted filter paper

Answer 181

Normal filter paper

Answer 182

Isoelectronic

Answer 183

Allotropes

Answer 184

Liquid < gas < solid

Answer 185

Gas = liquid = solid

Answer 186

Gas < liquid < solid

Answer 187

Gas < liquid < solid

Answer 188

Y Ba₂Cu₃O₇

Answer 189

Yb Ba₂Cu₂O₈

Answer 190

Y B₂Cu₃O₇

Answer 191

Hg Be₂Ca₂Cu₂O₈

Answer 192

Is unchanged

Answer 193

Change by 33%

Answer 194

Is changed by about 26%

Answer 195

Decrease twice

Answer 196

Be a function of the molecular mass of substance

Answer 197

Remains unchanged

Answer 198

Increase two fold

Answer 199

Crystalline

Answer 200

2 x 6.02 x 10²³

Answer 201

6.02 x 10²³

Answer 202

4 x 6.02 x 10²³

Answer 203

3/2 x 6.02 x 10²³

Answer 204

Monoclinic

Answer 205

Tetragonal

Answer 206

Lanthanides

Answer 207

Transition elements

Answer 208

p-block elements

Answer 209

3.72 x 10¯²³ g

Answer 210

1.4 x 10¯²¹ g

Answer 211

1.3 x 10¯²⁰ g

Answer 212

5.01 x 10¯²¹ g

Answer 213

Same physical and chemical properties

Answer 214

Different physical and same chemical properties

Answer 215

Different physical and chemical properties

Answer 216

Same physical and different chemical properties

Answer 217

Increase of intermolecular interactions

Answer 218

Increase in potential energy of molecules

Answer 219

Decrease of surface tension

Answer 220

Increase of K.E of molecules

Answer 221

Melted easily

Answer 222

Converted into sheets

Answer 223

All of these

Answer 224

Converted into wires

Answer 225

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

Answer 226

At high pressure, the intermolecular attraction becomes significant

Answer 227

A high pressure, the volume of the gas becomes insignificant

Answer 228

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

Answer 229

Can possess small regions of orderly arrangement of atoms

Answer 230

Have sharp melting point

Answer 231

Undergo clean cleave when cut with knife

Answer 232

Have perfect arrangement of atoms

Answer 233

Avogadro’s law

Answer 234

Dalton’s law

Answer 235

Charles’ law

Answer 236

Boyle’s law

Answer 237

Orderly arranged

Answer 238

Causing pressure

Answer 239

Randomly moving

Answer 240

Having wide spaces

Answer 241

Different physical and chemical properties

Answer 242

Different physical and same chemical properties

Answer 243

Same physical and chemical properties

Answer 244

Same physical and difference chemical properties

Answer 245

Good conductivity in solid state

Answer 246

High vapour pressures

Answer 247

Low melting points

Answer 248

Solubility in polar solvents

Answer 249

Low temperature

Answer 250

High ignition temperature

Answer 251

High concentration

Answer 252

High solubility

Answer 253

Sulphuric acid

Answer 254

Acetic acid

Answer 255

Chloroform

Answer 256

Trivalent impurity

Answer 257

Pentavalent impurity

Answer 258

Divalent impurity

Answer 259

Tetravalent

Answer 260

Monoclimic

Answer 261

Allotropic crystal

Answer 262

Liquid Crystals

Answer 263

Isomorphous crystals

Answer 264

Isomeric crystals

Answer 265

2.24 liter

Answer 266

22.4 liter

Answer 267

Dalton’s law

Answer 268

Graham’s law

Answer 269

Boyle’s law

Answer 270

Charles’ law

Answer 271

Gets a single positive charge

Answer 272

Gets a single negative charge

Answer 273

Gets a double positive charge

Answer 274

Gets a double negative charge

Answer 275

Crystalline forms

Answer 276

Isotopic form

Answer 277

Isomorphism

Answer 278

1 mole of S

Answer 279

3 x 10²³ atoms of C

Answer 280

7.0 g of Ag.

Answer 281

2 gram atom of nitrogen

Answer 282

7 crystal systems

Answer 283

14 crystal systems

Answer 284

4 crystal systems

Answer 285

3 crystal systems

Answer 286

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

Answer 287

Gases do not have a definite shape and volume

Answer 288

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

Answer 289

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

Answer 290

159 mm Hg.

Answer 291

159 g/Cm²

Answer 292

There are rigid and in-compressible

Answer 293

They are anisotropic

Answer 294

There is no orderly arrangement of particles

Answer 295

They melt over a range of temperature

Answer 296

Relative abundance

Answer 297

Number of isotopes

Answer 298

B evaporates more readily than A

Answer 299

A and B evaporates at the same rate

Answer 300

A evaporates more readily than C

Answer 301

B evaporates less readily than C

Answer 302

nλ = 1/2d sin θ

Answer 303

nλ = 2 d sin θ

Answer 304

nλ = 2 θ sin θ

Answer 305

2nλ = d sin θ

Answer 306

None of these

Answer 307

A gas is liberated

Answer 308

The gas is chlorine

Answer 309

Oxide of the gas is strongly acidic

Answer 310

Colour of the gas is greenish yellow

Answer 311

CaSO₄.2H₂O

Answer 312

Add water to the mixture and filter

Answer 313

Place the mixture in a separating funnel

Answer 314

Add dilute acid to the mixture and filter

Answer 315

Heat the mixture and allow it to cool

Answer 316

Polymorphism

Answer 317

Isomorphism

Answer 318

Anisotropy

Answer 319

Miller indices

Answer 320

NaCl type structure

Answer 321

ZnS type structure

Answer 322

AB₂ type ionic compound

Answer 323

CsCl type structure

Answer 324

Polar compounds

Answer 325

All types of atoms and molecules

Answer 326

CO is 3.75 times faster than CO₂

Answer 327

CO₂ is 1.25 times faster than CO

Answer 328

Both diffused at the same time

Answer 329

CO is 1.25 times faster than CO₂

Answer 330

2 liter atm

Answer 331

1 liter atm

Answer 332

3 liter atm

Answer 333

Crystallization

Answer 334

Chromatography

Answer 335

Solvent extraction

Answer 336

Molecules of all the gases have same size and same mass

Answer 337

Molecules are in chaotic motion

Answer 338

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

Answer 339

All molecular collisions are elastic

Answer 340

-10°C and 5.0 atm

Answer 341

-10°C and 2.0 atm

Answer 342

0°C and 2.0 atm

Answer 343

100°C and 2.0 atm

Answer 344

Non covalent bond force

Answer 345

Covalent bond

Answer 346

Electrostatic force

Answer 347

Electrical attraction

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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