Chemistry Liquids and Solids Online Mcqs Test

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Question 1

1. Formation of a cation is?

Question 2

2. Which of the following is a pseudo solid?

Question 3

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

Question 4

4. Which of the following is isotropic

Question 5

5. 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 6

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

Answer

Elastic collisions of gas molecules

Answer

Different molar mass

Answer

Non-polar nature of gases

Answer

Pressure of dust particles in air

Question 7

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

Answer

Acetic acid

Answer

Chloroform

Answer

Sulphuric acid

Question 8

8. A solid may be made up of

Answer

A, B and C

Question 9

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

Answer

Rhombohedral

Answer

Monoclinic

Answer

Isotropical

Question 10

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

Answer

15 tm, and 500 K

Answer

15 atm, and 200 K

Answer

0.5 atm, and 500 K

Answer

1 atm, and 273 K

Question 11

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

Answer

Ionic solids

Answer

Molecular solids

Answer

Pseudo solids

Answer

Covalent solids

Question 12

12. The example of hexagonal system is

Question 13

13. Super conductors are derived from compounds of

Answer

p-block elements

Answer

Lanthanides

Answer

Transition elements

Question 14

14. 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

He will feel warmth

Answer

He will feel cool

Answer

His blood pressure will increase

Question 15

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

Answer

NH₃ and H⁺

Answer

NH₃ and BF₃

Answer

CH₄ and AlCl₃

Answer

H₂O and H⁺

Question 16

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

Answer

Charles’ law

Answer

Dalton’s law

Answer

Graham’s law

Answer

Boyle’s law

Question 17

17. Crystalline solids can be identified easily by their

Answer

Definite geometry

Answer

All of these

Answer

Transition temperature

Question 18

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

Question 19

19. 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

22.4 liters

Answer

2.24 liters

Question 20

20. Correct order of intermolecular forces

Answer

Liquid < gas < solid

Answer

Gas < liquid < solid

Answer

Gas < liquid < solid

Answer

Gas = liquid = solid

Question 21

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

Question 22

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

Answer

700 mm of Hg

Answer

100 mm of Hg

Answer

1489 mm of Hg

Answer

790 mm of Hg

Question 23

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

Answer

C₃H₁₀O₂

Answer

C₆H₁₀O₄

Answer

C₄H₁₀O₂

Answer

C₃H₅O₂

Question 24

24. Amorphous substances possess

Answer

Definite heat of fusion

Answer

Sharp melting points

Answer

No definite heat of fusion

Answer

Sharp B.P.

Question 25

25. Repeatable entity of a crystal structure is known as

Answer

Miller indices

Question 26

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

Question 27

27. 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 28

28. Which is distilled first?

Answer

Liquid H₂

Answer

Liquid O₂

Answer

Liquid CO₂

Answer

Liquid N₂

Question 29

29. 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 30

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

Answer

4 x 6.02 x 10²³

Answer

3/2 x 6.02 x 10²³

Answer

2 x 6.02 x 10²³

Answer

6.02 x 10²³

Question 31

31. In case of elements the polymorphism is called

Answer

Isotopic form

Answer

Crystalline forms

Answer

Isomorphism

Question 32

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

Answer

CO₂ is 1.25 times faster than CO

Answer

Both diffused at the same time

Answer

CO is 1.25 times faster than CO₂

Answer

CO is 3.75 times faster than CO₂

Question 33

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

Answer

Gets a single positive charge

Answer

Gets a single negative charge

Answer

Gets a double negative charge

Answer

Gets a double positive charge

Question 34

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

Question 35

35. Van der Waal’s forces exist in

Answer

Polar compounds

Answer

All types of atoms and molecules

Question 36

36. Half atmospheric pressure is

Answer

8.5 Pounds

Answer

101.325 Pa

Question 37

37. Glass is a

Answer

Super-cooled liquid

Answer

Micro-crystalline solid

Answer

None of these

Question 38

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

Question 39

39. Amorphous solids

Answer

Undergo clean cleave when cut with knife

Answer

Have sharp melting point

Answer

Have perfect arrangement of atoms

Answer

Can possess small regions of orderly arrangement of atoms

Question 40

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

Answer

None of these

Question 41

41. Under what conditions real gases deviate from ideal behavior

Answer

High pressure

Answer

High temperature

Answer

Low temperature

Answer

Both b and c

Question 42

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

Answer

4.0956 x 10 ²⁴

Answer

1.5057 x 10 ²⁴

Answer

3.0115 x 10 ²⁴

Answer

2.0478 x 10 ²⁴

Question 43

43. 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

Isomeric crystals

Answer

Allotropic crystal

Answer

Isomorphous crystals

Question 44

44. Fluted filter paper is used for

Answer

Filtering the hot saturated solution

Answer

Increasing the rate of filtration

Answer

To avoid premature crystallization of the solute

Answer

To dissolve large amount of substance at its boiling point

Question 45

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

Answer

Causing pressure

Answer

Randomly moving

Answer

Having wide spaces

Answer

Orderly arranged

Question 46

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

Answer

The coordination number of carbon atoms is 4

Answer

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

Answer

The carbon atoms are arranged layers

Answer

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

Question 47

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

Answer

None of these

Answer

Polymorphism

Answer

Isomorphism

Question 48

48. 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

Question 49

49. 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

About the same as the molar volumes of liquids

Answer

Little bit greater than the molar volumes of liquid

Answer

Much larger than the molar volumes of liquids and solids

Answer

Little bit less than the molar volumes of solids

Question 50

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

Question 51

51. 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

Increase two fold

Answer

Be a function of the molecular mass of substance

Answer

Decrease twice

Answer

Remains unchanged

Question 52

52. Bragg’s law is given by equation

Answer

nλ = 2 d sin θ

Answer

nλ = 1/2d sin θ

Answer

2nλ = d sin θ

Answer

nλ = 2 θ sin θ

Question 53

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

Answer

Tetragonal

Answer

Monoclinic

Question 54

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

Question 55

55. Solvents of covalent compounds include all but

Answer

Tetra chloromethane

Question 56

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

Answer

Descending paper chromatography

Answer

Liquid solid chromatography

Answer

Ascending paper chromatography

Answer

Liquid gas chromatography

Question 57

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

Answer

159 mm Hg.

Answer

159 g/Cm²

Question 58

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

Answer

Sublimation

Answer

Condensation

Answer

Vaporization

Answer

Filtration

Question 59

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

Answer

There are rigid and in-compressible

Answer

They melt over a range of temperature

Answer

They are anisotropic

Answer

There is no orderly arrangement of particles

Question 60

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

Answer

Decreased volume of the solution

Answer

Increased attraction between the molecules

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

Question 61

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

Answer

Both fcc and bcc

Answer

None of these

Question 62

62. Mean distance between atoms in the range of

Question 63

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

Answer

Moderately

Question 64

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

Answer

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

Answer

Gases do not have a definite shape and volume

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 157

Na(s) → N²⁺ (g) + e¯

Answer 158

Na(g) → N²⁺ (g) + e¯

Answer 159

Na(g) → N²⁺ (g) + +¯

Answer 160

Na(s) → N²⁺ (g) + 2e¯

Answer 161

Y B₂Cu₃O₇

Answer 162

Hg Be₂Ca₂Cu₂O₈

Answer 163

Y Ba₂Cu₃O₇

Answer 164

Yb Ba₂Cu₂O₈

Answer 165

Allotropes

Answer 166

Isoelectronic

Answer 167

Volume of O₂ required is 50 dm³

Answer 168

Volume of O₂ required is 25 dm³

Answer 169

Volume of CO₂ formed is 60 dm³

Answer 170

Volume of CO₂ formed is 25 dm³

Answer 171

Inorganic compounds

Answer 172

Organic compounds

Answer 173

None of these

Answer 174

Both A and B

Answer 175

Free valence electrons

Answer 176

Ione pair of electrons

Answer 177

8.31 L atm K¯¹ mol¯¹

Answer 178

8.31 x 10⁷ erg³ K¯¹ mol¯¹

Answer 179

8.31 x 10⁷ dynes Cm K¯¹ mol¯¹

Answer 180

8.31 JK¯¹ mol¯¹

Answer 181

558.5 x 6.022 x 10²³

Answer 182

Half that in 8 g of He

Answer 183

Twice that in 60 g carbon

Answer 184

6.022 x 10²²

Answer 185

Crystalline

Answer 186

7.0 g of Ag.

Answer 187

2 gram atom of nitrogen

Answer 188

1 mole of S

Answer 189

3 x 10²³ atoms of C

Answer 190

Divalent impurity

Answer 191

Tetravalent

Answer 192

Pentavalent impurity

Answer 193

Trivalent impurity

Answer 194

127°C and 1 atm

Answer 195

273°C and 2 atm

Answer 196

S.T.P (0°C and 1 atm)

Answer 197

0°C and 2 atm

Answer 198

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

Answer 199

At high pressure, the intermolecular attraction becomes significant

Answer 200

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

Answer 201

A high pressure, the volume of the gas becomes insignificant

Answer 202

Low temperature

Answer 203

High concentration

Answer 204

High solubility

Answer 205

High ignition temperature

Answer 206

Molecules are in chaotic motion

Answer 207

Molecules of all the gases have same size and same mass

Answer 208

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

Answer 209

All molecular collisions are elastic

Answer 210

CaSO₄.2H₂O

Answer 211

22.4 liter

Answer 212

2.24 liter

Answer 213

None of these

Answer 214

10 mL of 0.02 M

Answer 215

10 mL of 0.1 M

Answer 216

5 mL of 0.1 M

Answer 217

10 mL of 0.5 M

Answer 218

Same physical and different chemical properties

Answer 219

Different physical and same chemical properties

Answer 220

Same physical and chemical properties

Answer 221

Different physical and chemical properties

Answer 222

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

Answer 223

None of these

Answer 224

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

Answer 225

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

Answer 226

Normal filter paper

Answer 227

Fluted filter paper

Answer 228

Both A & B

Answer 229

Electrical attraction

Answer 230

Non covalent bond force

Answer 231

Electrostatic force

Answer 232

Covalent bond

Answer 233

Octahedron

Answer 234

Tetrahedron

Answer 235

3 crystal systems

Answer 236

7 crystal systems

Answer 237

14 crystal systems

Answer 238

4 crystal systems

Answer 239

ZnS type structure

Answer 240

CsCl type structure

Answer 241

AB₂ type ionic compound

Answer 242

NaCl type structure

Answer 243

Chemical properties

Answer 244

Properties which depend upon mass

Answer 245

Arrangement of electrons in orbitals

Answer 246

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

Answer 247

Polymorphism

Answer 248

Anisotropy

Answer 249

Isomorphism

Answer 250

Increase in potential energy of molecules

Answer 251

Increase of intermolecular interactions

Answer 252

Decrease of surface tension

Answer 253

Increase of K.E of molecules

Answer 254

Monoclimic

Answer 255

Orthogonal lattice

Answer 256

Cubic lattice

Answer 257

Ortho rhombic lattice

Answer 258

Isomorphism

Answer 259

Polymorphism

Answer 260

Anisotropy

Answer 261

Solid crystals

Answer 262

None of these

Answer 263

Ionic crystals

Answer 264

Liquid crystals

Answer 265

Single extraction and large portion of solvent

Answer 266

Single extraction and small portion of solvent

Answer 267

Repeated extraction and large portion of solvent

Answer 268

Repeated extraction and small portion of solvent

Answer 269

0°C and 2.0 atm

Answer 270

100°C and 2.0 atm

Answer 271

-10°C and 2.0 atm

Answer 272

-10°C and 5.0 atm

Answer 273

Different physical and same chemical properties

Answer 274

Same physical and difference chemical properties

Answer 275

Different physical and chemical properties

Answer 276

Same physical and chemical properties

Answer 277

Place the mixture in a separating funnel

Answer 278

Add dilute acid to the mixture and filter

Answer 279

Add water to the mixture and filter

Answer 280

Heat the mixture and allow it to cool

Answer 281

B evaporates more readily than A

Answer 282

B evaporates less readily than C

Answer 283

A evaporates more readily than C

Answer 284

A and B evaporates at the same rate

Answer 285

Transition temperature

Answer 286

Definite geometry

Answer 287

Sharp melting point

Answer 288

3 liter atm

Answer 289

2 liter atm

Answer 290

1 liter atm

Answer 291

Valence electrons

Answer 292

Change by 33%

Answer 293

Is changed by about 26%

Answer 294

Is unchanged

Answer 295

Low melting points

Answer 296

Good conductivity in solid state

Answer 297

Solubility in polar solvents

Answer 298

High vapour pressures

Answer 299

5.01 x 10¯²¹ g

Answer 300

3.72 x 10¯²³ g

Answer 301

1.4 x 10¯²¹ g

Answer 302

1.3 x 10¯²⁰ g

Answer 303

No definite heat of fusion

Answer 304

All of these

Answer 305

No sharp melting points

Answer 306

No definite geometry

Answer 307

One mole of NH₃ will produce ½ mole of N₂

Answer 308

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

Answer 309

One mole of NH₃ will produce 6 moles of N₂

Answer 310

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

Answer 311

Boyle’s law

Answer 312

Avogadro’s law

Answer 313

Dalton’s law

Answer 314

Charles’ law

Answer 315

A gas is liberated

Answer 316

The gas is chlorine

Answer 317

Colour of the gas is greenish yellow

Answer 318

Oxide of the gas is strongly acidic

Answer 319

Filtrate runs down without crystals

Answer 320

The filtrate is quick

Answer 321

This gives medium size crystals

Answer 322

This gives bigger size crystals

Answer 323

Altahydral manner

Answer 324

Tetrahedral manner

Answer 325

Square planner manner

Answer 326

Hexagonal manner

Answer 327

Diatic bond

Answer 328

Metallic bonds

Answer 329

Ionic compounds

Answer 330

Covalent bonds

Answer 331

Number of isotopes

Answer 332

Relative abundance

Answer 333

Chromatography

Answer 334

Solvent extraction

Answer 335

Crystallization

Answer 336

6 moles of S

Answer 337

44.8 dm3 CO₂ at S.T.P

Answer 338

20 moles of S8

Answer 339

5.0 moles of SO₂

Answer 340

Diatic bonds

Answer 341

Metallic compounds

Answer 342

Covalent compounds

Answer 343

Ionic compounds

Answer 344

Melted easily

Answer 345

Converted into wires

Answer 346

Converted into sheets

Answer 347

All 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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