Chemistry Liquids and Solids Online Mcqs Test

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Question 1

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

Answer

None of these

Question 2

2. 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

Liquid gas chromatography

Answer

Ascending paper chromatography

Question 3

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

Answer

Monoclinic

Answer

Tetragonal

Question 4

4. Crystalline solids can be identified easily by their

Answer

Transition temperature

Answer

Definite geometry

Answer

All of these

Question 5

5. Triple point of water is

Question 6

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

Answer

None of these

Answer

Both fcc and bcc

Question 7

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

Question 8

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

Answer

None of these

Question 9

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

Answer

Moderately

Question 10

10. In case of elements the polymorphism is called

Answer

Isotopic form

Answer

Crystalline forms

Answer

Isomorphism

Question 11

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

Answer

Na(g) → N²⁺ (g) + e¯

Answer

Na(s) → N²⁺ (g) + 2e¯

Answer

Na(s) → N²⁺ (g) + e¯

Answer

Na(g) → N²⁺ (g) + +¯

Question 12

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

Question 13

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

Answer

Boyle’s law

Answer

Graham’s law

Answer

Dalton’s law

Answer

Charles’ law

Question 14

14. The mass of one mole of electron is

Question 15

15. 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

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

Answer

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

Answer

Gases do not have a definite shape and volume

Question 16

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

Answer

Tetrahedral manner

Answer

Square planner manner

Answer

Hexagonal manner

Answer

Altahydral manner

Question 17

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

Answer

Isomorphism

Answer

Anisotropy

Answer

Polymorphism

Question 18

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

Question 19

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

Answer

Polymorphism

Answer

Isomorphism

Answer

None of these

Question 20

20. Amorphous substance posses

Answer

No definite heat of fusion

Answer

No definite geometry

Answer

All of these

Answer

No sharp melting points

Question 21

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

Answer

159 g/Cm²

Answer

159 mm Hg.

Question 22

22. The most efficient solvent extraction method is by using

Answer

Repeated extraction and small portion of solvent

Answer

Repeated extraction and large portion of solvent

Answer

Single extraction and small portion of solvent

Answer

Single extraction and large portion of solvent

Question 23

23. How many allotropic forms are present in carbon?

Question 24

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

Question 25

25. The example of hexagonal system is

Question 26

26. The molar volume of CO₂ is maximum at

Answer

273°C and 2 atm

Answer

S.T.P (0°C and 1 atm)

Answer

0°C and 2 atm

Answer

127°C and 1 atm

Question 27

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

Question 28

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

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

Answer

One mole of NH₃ will produce 6 moles of N₂

Answer

One mole of NH₃ will produce ½ mole of N₂

Question 31

31. Which is trigonal crystal?

Answer

CaSO₄.2H₂O

Question 32

32. 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 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

Question 33

33. Which of the following is a pseudo solid?

Question 34

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

Question 35

35. 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 JK¯¹ mol¯¹

Answer

8.31 L atm K¯¹ mol¯¹

Answer

8.31 x 10⁷ dynes Cm K¯¹ mol¯¹

Question 36

36. Which of the following is isotropic

Question 37

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

Answer

Avogadro’s law

Answer

Dalton’s law

Answer

Boyle’s law

Answer

Charles’ law

Question 38

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

Question 39

39. A solid may be made up of

Answer

A, B and C

Question 40

40. Potassium crystallizes with a

Answer

Ortho rhombic lattice

Answer

Orthogonal lattice

Answer

Cubic lattice

Question 41

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

Question 42

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

Answer

ZnS type structure

Answer

AB₂ type ionic compound

Answer

CsCl type structure

Answer

NaCl type structure

Question 43

43. Isotopes differ in

Answer

Arrangement of electrons in orbitals

Answer

Properties which depend upon mass

Answer

Chemical properties

Answer

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

Question 44

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

Question 45

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

Answer

A gas is liberated

Answer

Colour of the gas is greenish yellow

Answer

The gas is chlorine

Answer

Oxide of the gas is strongly acidic

Question 46

46. 4.4 g of CO₂ contains how many liters of CO₂ at STP?

Answer

22.4 liter

Answer

2.24 liter

Question 47

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

Answer

Increase of K.E of molecules

Answer

Increase in potential energy of molecules

Answer

Decrease of surface tension

Answer

Increase of intermolecular interactions

Question 48

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

Answer

This gives medium size crystals

Answer

The filtrate is quick

Answer

This gives bigger size crystals

Answer

Filtrate runs down without crystals

Question 49

49. Super conductors are derived from compounds of

Answer

Transition elements

Answer

Lanthanides

Answer

p-block elements

Question 50

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

Answer

CO is 3.75 times faster than CO₂

Answer

CO is 1.25 times faster than CO₂

Answer

CO₂ is 1.25 times faster than CO

Answer

Both diffused at the same time

Question 51

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

Answer

Vaporization

Answer

Condensation

Answer

Filtration

Answer

Sublimation

Question 52

52. 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 53

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

Question 54

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

Answer

Number of isotopes

Answer

Relative abundance

Question 55

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

Answer

1 atm, and 273 K

Answer

15 tm, and 500 K

Answer

0.5 atm, and 500 K

Answer

15 atm, and 200 K

Question 56

56. Crystals can be classified into

Answer

3 crystal systems

Answer

14 crystal systems

Answer

4 crystal systems

Answer

7 crystal systems

Question 57

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

Answer

Sulphuric acid

Answer

Chloroform

Answer

Acetic acid

Question 58

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

Question 59

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

Question 60

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

Answer

Tetravalent

Answer

Trivalent impurity

Answer

Pentavalent impurity

Answer

Divalent impurity

Question 61

61. The allotropic forms of an element are called

Answer

Allotropes

Answer

Isoelectronic

Question 62

62. Simple molecules or giant macromolecules are examples of

Answer

Covalent bonds

Answer

Diatic bond

Answer

Ionic compounds

Answer

Metallic bonds

Question 63

63. Repeatable entity of a crystal structure is known as

Answer

Miller indices

Question 64

64. 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)

Answer 133

Polar compounds

Answer 134

All types of atoms and molecules

Answer 135

Both b and c

Answer 136

Low temperature

Answer 137

High pressure

Answer 138

High temperature

Answer 139

Is changed by about 26%

Answer 140

Is unchanged

Answer 141

Change by 33%

Answer 142

Definite heat of fusion

Answer 143

Sharp B.P.

Answer 144

No definite heat of fusion

Answer 145

Sharp melting points

Answer 146

Orderly arranged

Answer 147

Having wide spaces

Answer 148

Causing pressure

Answer 149

Randomly moving

Answer 150

8.5 Pounds

Answer 151

101.325 Pa

Answer 152

Volume of O₂ required is 25 dm³

Answer 153

Volume of O₂ required is 50 dm³

Answer 154

Volume of CO₂ formed is 25 dm³

Answer 155

Volume of CO₂ formed is 60 dm³

Answer 156

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

Answer 157

Decreased covalent and hydrogen bond forces

Answer 158

Increased attraction between the molecules

Answer 159

Decreased volume of the solution

Answer 160

Ionic solids

Answer 161

Pseudo solids

Answer 162

Molecular solids

Answer 163

Covalent solids

Answer 164

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

Answer 165

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

Answer 166

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

Answer 167

None of these

Answer 168

2 x 6.02 x 10²³

Answer 169

4 x 6.02 x 10²³

Answer 170

6.02 x 10²³

Answer 171

3/2 x 6.02 x 10²³

Answer 172

To dissolve large amount of substance at its boiling point

Answer 173

Filtering the hot saturated solution

Answer 174

To avoid premature crystallization of the solute

Answer 175

Increasing the rate of filtration

Answer 176

Valence electrons

Answer 177

0°C and 2.0 atm

Answer 178

-10°C and 2.0 atm

Answer 179

100°C and 2.0 atm

Answer 180

-10°C and 5.0 atm

Answer 181

Super-cooled liquid

Answer 182

None of these

Answer 183

Micro-crystalline solid

Answer 184

Be a function of the molecular mass of substance

Answer 185

Increase two fold

Answer 186

Decrease twice

Answer 187

Remains unchanged

Answer 188

1 mole of S

Answer 189

3 x 10²³ atoms of C

Answer 190

2 gram atom of nitrogen

Answer 191

7.0 g of Ag.

Answer 192

Different physical and chemical properties

Answer 193

Same physical and chemical properties

Answer 194

Different physical and same chemical properties

Answer 195

Same physical and different chemical properties

Answer 196

Electrical attraction

Answer 197

Electrostatic force

Answer 198

Covalent bond

Answer 199

Non covalent bond force

Answer 200

790 mm of Hg

Answer 201

100 mm of Hg

Answer 202

1489 mm of Hg

Answer 203

700 mm of Hg

Answer 204

All of these

Answer 205

Converted into wires

Answer 206

Melted easily

Answer 207

Converted into sheets

Answer 208

Crystallization

Answer 209

Solvent extraction

Answer 210

Chromatography

Answer 211

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

Answer 212

Molecules of all the gases have same size and same mass

Answer 213

Molecules are in chaotic motion

Answer 214

All molecular collisions are elastic

Answer 215

nλ = 2 θ sin θ

Answer 216

nλ = 1/2d sin θ

Answer 217

nλ = 2 d sin θ

Answer 218

2nλ = d sin θ

Answer 219

Covalent compounds

Answer 220

Ionic compounds

Answer 221

Diatic bonds

Answer 222

Metallic compounds

Answer 223

11.2 liters

Answer 224

2.24 liters

Answer 225

22.4 liters

Answer 226

Normal filter paper

Answer 227

Fluted filter paper

Answer 228

Both A & B

Answer 229

Tetra chloromethane

Answer 230

Add dilute acid to the mixture and filter

Answer 231

Add water to the mixture and filter

Answer 232

Heat the mixture and allow it to cool

Answer 233

Place the mixture in a separating funnel

Answer 234

Gas < liquid < solid

Answer 235

Liquid < gas < solid

Answer 236

Gas = liquid = solid

Answer 237

Gas < liquid < solid

Answer 238

He will feel cool

Answer 239

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

Answer 240

He will feel warmth

Answer 241

His blood pressure will increase

Answer 242

2 liter atm

Answer 243

3 liter atm

Answer 244

1 liter atm

Answer 245

Isomorphism

Answer 246

Polymorphism

Answer 247

Anisotropy

Answer 248

Isomorphous crystals

Answer 249

Allotropic crystal

Answer 250

Liquid Crystals

Answer 251

Isomeric crystals

Answer 252

High solubility

Answer 253

High concentration

Answer 254

High ignition temperature

Answer 255

Low temperature

Answer 256

Ione pair of electrons

Answer 257

Free valence electrons

Answer 258

10 mL of 0.5 M

Answer 259

10 mL of 0.02 M

Answer 260

10 mL of 0.1 M

Answer 261

5 mL of 0.1 M

Answer 262

Twice that in 60 g carbon

Answer 263

558.5 x 6.022 x 10²³

Answer 264

Half that in 8 g of He

Answer 265

6.022 x 10²²

Answer 266

Crystalline

Answer 267

Good conductivity in solid state

Answer 268

High vapour pressures

Answer 269

Low melting points

Answer 270

Solubility in polar solvents

Answer 271

Gets a single negative charge

Answer 272

Gets a double negative charge

Answer 273

Gets a single positive charge

Answer 274

Gets a double positive charge

Answer 275

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

Answer 276

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

Answer 277

At high pressure, the intermolecular attraction becomes significant

Answer 278

A high pressure, the volume of the gas becomes insignificant

Answer 279

Monoclimic

Answer 280

Organic compounds

Answer 281

Inorganic compounds

Answer 282

None of these

Answer 283

Both A and B

Answer 284

Little bit greater than the molar volumes of liquid

Answer 285

About the same as the molar volumes of liquids

Answer 286

Little bit less than the molar volumes of solids

Answer 287

Much larger than the molar volumes of liquids and solids

Answer 288

1.5057 x 10 ²⁴

Answer 289

4.0956 x 10 ²⁴

Answer 290

3.0115 x 10 ²⁴

Answer 291

2.0478 x 10 ²⁴

Answer 292

Liquid N₂

Answer 293

Liquid O₂

Answer 294

Liquid CO₂

Answer 295

Liquid H₂

Answer 296

1.3 x 10¯²⁰ g

Answer 297

5.01 x 10¯²¹ g

Answer 298

3.72 x 10¯²³ g

Answer 299

1.4 x 10¯²¹ g

Answer 300

44.8 dm3 CO₂ at S.T.P

Answer 301

6 moles of S

Answer 302

20 moles of S8

Answer 303

5.0 moles of SO₂

Answer 304

H₂O and H⁺

Answer 305

CH₄ and AlCl₃

Answer 306

NH₃ and H⁺

Answer 307

NH₃ and BF₃

Answer 308

A evaporates more readily than C

Answer 309

A and B evaporates at the same rate

Answer 310

B evaporates more readily than A

Answer 311

B evaporates less readily than C

Answer 312

Isotropical

Answer 313

Rhombohedral

Answer 314

Monoclinic

Answer 315

There is no orderly arrangement of particles

Answer 316

They are anisotropic

Answer 317

They melt over a range of temperature

Answer 318

There are rigid and in-compressible

Answer 319

Ionic crystals

Answer 320

None of these

Answer 321

Solid crystals

Answer 322

Liquid crystals

Answer 323

Different molar mass

Answer 324

Elastic collisions of gas molecules

Answer 325

Pressure of dust particles in air

Answer 326

Non-polar nature of gases

Answer 327

Can possess small regions of orderly arrangement of atoms

Answer 328

Undergo clean cleave when cut with knife

Answer 329

Have perfect arrangement of atoms

Answer 330

Have sharp melting point

Answer 331

Definite geometry

Answer 332

Sharp melting point

Answer 333

Transition temperature

Answer 334

Y Ba₂Cu₃O₇

Answer 335

Y B₂Cu₃O₇

Answer 336

Yb Ba₂Cu₂O₈

Answer 337

Hg Be₂Ca₂Cu₂O₈

Answer 338

C₃H₅O₂

Answer 339

C₄H₁₀O₂

Answer 340

C₆H₁₀O₄

Answer 341

C₃H₁₀O₂

Answer 342

Same physical and difference chemical properties

Answer 343

Different physical and chemical properties

Answer 344

Same physical and chemical properties

Answer 345

Different physical and same chemical properties

Answer 346

Tetrahedron

Answer 347

Octahedron

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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Chemistry Liquids and Solids Online Mcqs Test

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Important Chemistry Solids Question and Answer

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