Chemistry Liquids and Solids Online Mcqs Test

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Question 1

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

Answer

Crystallization

Answer

Solvent extraction

Answer

Chromatography

Question 2

2. 3.2 g of oxygen (At. Wt. = 16) and 0.2 g of hydrogen (At. Wt. = 1) are placed in a 1.12 L flask at 0°C. The total pressure of the gas mixture will be

Question 3

3. Ice is ________ crystal

Question 4

4. Amorphous substance posses

Answer

No definite geometry

Answer

All of these

Answer

No sharp melting points

Answer

No definite heat of fusion

Question 5

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

Answer

Na(s) → N²⁺ (g) + e¯

Answer

Na(s) → N²⁺ (g) + 2e¯

Answer

Na(g) → N²⁺ (g) + +¯

Answer

Na(g) → N²⁺ (g) + e¯

Question 6

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

Question 7

7. The most efficient solvent extraction method is by using

Answer

Single extraction and small portion of solvent

Answer

Repeated extraction and large portion of solvent

Answer

Repeated extraction and small portion of solvent

Answer

Single extraction and large portion of solvent

Question 8

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

Question 9

9. Simple molecules or giant macromolecules are examples of

Answer

Ionic compounds

Answer

Diatic bond

Answer

Covalent bonds

Answer

Metallic bonds

Question 10

10. The material possessing superconducting properties is

Answer

Hg Be₂Ca₂Cu₂O₈

Answer

Yb Ba₂Cu₂O₈

Answer

Y B₂Cu₃O₇

Answer

Y Ba₂Cu₃O₇

Question 11

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

Answer

This gives medium size crystals

Answer

Filtrate runs down without crystals

Answer

The filtrate is quick

Answer

This gives bigger size crystals

Question 12

12. How many allotropic forms are present in carbon?

Question 13

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

Question 14

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

Question 15

15. Which of the following substances is not amorphous?

Question 16

16. 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 17

17. A bottle of copper (II) oxide has been contaminated with some solid, NaCl, How can NaCl be removed from the Copper (II) oxide?

Answer

Add water to the mixture and filter

Answer

Add dilute acid to the mixture and filter

Answer

Heat the mixture and allow it to cool

Answer

Place the mixture in a separating funnel

Question 18

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

Answer

15 tm, and 500 K

Answer

1 atm, and 273 K

Answer

15 atm, and 200 K

Answer

0.5 atm, and 500 K

Question 19

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

Answer

-10°C and 2.0 atm

Answer

-10°C and 5.0 atm

Answer

0°C and 2.0 atm

Answer

100°C and 2.0 atm

Question 20

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

Answer

Hexagonal manner

Answer

Altahydral manner

Answer

Tetrahedral manner

Answer

Square planner manner

Question 21

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

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

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

Question 22

22. Half atmospheric pressure is

Answer

8.5 Pounds

Answer

101.325 Pa

Question 23

23. 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 24

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

Question 25

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

Question 26

26. Under what conditions real gases deviate from ideal behavior

Answer

Both b and c

Answer

Low temperature

Answer

High temperature

Answer

High pressure

Question 27

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

Answer

None of these

Question 28

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

Answer

None of these

Question 29

29. 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

Remains unchanged

Answer

Decrease twice

Answer

Increase two fold

Answer

Be a function of the molecular mass of substance

Question 30

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

Answer

AB₂ type ionic compound

Answer

ZnS type structure

Answer

NaCl type structure

Answer

CsCl type structure

Question 31

31. Super conductors are derived from compounds of

Answer

Transition elements

Answer

p-block elements

Answer

Lanthanides

Question 32

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

Question 33

33. Isomorphic substance have

Answer

Different physical and chemical properties

Answer

Same physical and chemical properties

Answer

Different physical and same chemical properties

Answer

Same physical and difference chemical properties

Question 34

34. Graphite is a good conductor of electricity due to the presence of ________.

Answer

Ione pair of electrons

Answer

Free valence electrons

Question 35

35. Bragg’s law is given by equation

Answer

nλ = 2 d sin θ

Answer

nλ = 1/2d sin θ

Answer

nλ = 2 θ sin θ

Answer

2nλ = d sin θ

Question 36

36. Crystalline solids can be identified easily from their

Answer

Definite geometry

Answer

Sharp melting point

Answer

Transition temperature

Question 37

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

Answer

Acetic acid

Answer

Chloroform

Answer

Sulphuric acid

Question 38

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

Answer

Isomorphism

Answer

Polymorphism

Answer

Anisotropy

Question 39

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

Answer

Tetragonal

Answer

Monoclinic

Question 40

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

Answer

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

Answer

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

Answer

None of these

Answer

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

Question 41

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

Answer

Covalent bond

Answer

Electrical attraction

Answer

Non covalent bond force

Answer

Electrostatic force

Question 42

42. 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

2 liter atm

Answer

3 liter atm

Answer

1 liter atm

Question 43

43. 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 44

44. Triple point of water is

Question 45

45. Which forms metallic crystals?

Question 46

46. Which of the following is a pseudo solid?

Question 47

47. 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 48

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

Answer

None of these

Answer

Both fcc and bcc

Question 49

49. 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 50

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

Answer

159 mm Hg.

Answer

159 g/Cm²

Question 51

51. a ≠ b ≠ c, ∞ ≠ β ≠ r ≠ 90 is representation of

Answer

Monoclimic

Question 52

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

Question 53

53. Particles that most effects material properties

Answer

Valence electrons

Question 54

54. 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)

Question 55

55. Repeatable entity of a crystal structure is known as

Answer

Miller indices

Question 56

56. Isomorphic substances have

Answer

Different physical and chemical properties

Answer

Same physical and different chemical properties

Answer

Same physical and chemical properties

Answer

Different physical and same chemical properties

Question 57

57. Crystalline solids can be identified easily by their

Answer

All of these

Answer

Transition temperature

Answer

Definite geometry

Question 58

58. The crystal structure having face centered cubic arrangement is

Question 59

59. 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

B evaporates less readily than C

Answer

B evaporates more readily than A

Answer

A evaporates more readily than C

Answer

A and B evaporates at the same rate

Question 60

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

Answer

High concentration

Answer

Low temperature

Answer

High solubility

Answer

High ignition temperature

Question 61

61. Van der Waal’s forces exist in

Answer

All types of atoms and molecules

Answer

Polar compounds

Question 62

62. The example of hexagonal system is

Question 63

63. Correct order of intermolecular forces

Answer

Liquid < gas < solid

Answer

Gas < liquid < solid

Answer

Gas = liquid = solid

Answer

Gas < liquid < solid

Question 64

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

Answer 140

5.0 moles of SO₂

Answer 141

44.8 dm3 CO₂ at S.T.P

Answer 142

6 moles of S

Answer 143

20 moles of S8

Answer 144

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

Answer 145

One mole of NH₃ will produce 6 moles of N₂

Answer 146

One mole of NH₃ will produce ½ mole of N₂

Answer 147

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

Answer 148

No definite heat of fusion

Answer 149

Sharp B.P.

Answer 150

Definite heat of fusion

Answer 151

Sharp melting points

Answer 152

Volume of CO₂ formed is 25 dm³

Answer 153

Volume of O₂ required is 50 dm³

Answer 154

Volume of O₂ required is 25 dm³

Answer 155

Volume of CO₂ formed is 60 dm³

Answer 156

None of these

Answer 157

Solid crystals

Answer 158

Liquid crystals

Answer 159

Ionic crystals

Answer 160

Elastic collisions of gas molecules

Answer 161

Non-polar nature of gases

Answer 162

Different molar mass

Answer 163

Pressure of dust particles in air

Answer 164

Isomorphism

Answer 165

Anisotropy

Answer 166

Polymorphism

Answer 167

Oxide of the gas is strongly acidic

Answer 168

The gas is chlorine

Answer 169

Colour of the gas is greenish yellow

Answer 170

A gas is liberated

Answer 171

22.4 liters

Answer 172

2.24 liters

Answer 173

11.2 liters

Answer 174

There are rigid and in-compressible

Answer 175

They are anisotropic

Answer 176

They melt over a range of temperature

Answer 177

There is no orderly arrangement of particles

Answer 178

Allotropes

Answer 179

Isoelectronic

Answer 180

Undergo clean cleave when cut with knife

Answer 181

Have perfect arrangement of atoms

Answer 182

Can possess small regions of orderly arrangement of atoms

Answer 183

Have sharp melting point

Answer 184

3 crystal systems

Answer 185

7 crystal systems

Answer 186

14 crystal systems

Answer 187

4 crystal systems

Answer 188

Organic compounds

Answer 189

Inorganic compounds

Answer 190

Both A and B

Answer 191

None of these

Answer 192

Liquid Crystals

Answer 193

Isomeric crystals

Answer 194

Isomorphous crystals

Answer 195

Allotropic crystal

Answer 196

To avoid premature crystallization of the solute

Answer 197

To dissolve large amount of substance at its boiling point

Answer 198

Increasing the rate of filtration

Answer 199

Filtering the hot saturated solution

Answer 200

Ortho rhombic lattice

Answer 201

Cubic lattice

Answer 202

Orthogonal lattice

Answer 203

Super-cooled liquid

Answer 204

None of these

Answer 205

Micro-crystalline solid

Answer 206

High vapour pressures

Answer 207

Low melting points

Answer 208

Solubility in polar solvents

Answer 209

Good conductivity in solid state

Answer 210

Much larger than the molar volumes of liquids and solids

Answer 211

Little bit less than the molar volumes of solids

Answer 212

About the same as the molar volumes of liquids

Answer 213

Little bit greater than the molar volumes of liquid

Answer 214

All molecular collisions are elastic

Answer 215

Molecules of all the gases have same size and same mass

Answer 216

Molecules are in chaotic motion

Answer 217

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

Answer 218

A high pressure, the volume of the gas becomes insignificant

Answer 219

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

Answer 220

At high pressure, the intermolecular attraction becomes significant

Answer 221

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

Answer 222

2.24 liter

Answer 223

22.4 liter

Answer 224

790 mm of Hg

Answer 225

1489 mm of Hg

Answer 226

100 mm of Hg

Answer 227

700 mm of Hg

Answer 228

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

Answer 229

Increased attraction between the molecules

Answer 230

Decreased volume of the solution

Answer 231

Decreased covalent and hydrogen bond forces

Answer 232

8.31 JK¯¹ mol¯¹

Answer 233

8.31 x 10⁷ erg³ K¯¹ mol¯¹

Answer 234

8.31 x 10⁷ dynes Cm K¯¹ mol¯¹

Answer 235

8.31 L atm K¯¹ mol¯¹

Answer 236

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

Answer 237

His blood pressure will increase

Answer 238

He will feel cool

Answer 239

He will feel warmth

Answer 240

Filtration

Answer 241

Sublimation

Answer 242

Condensation

Answer 243

Vaporization

Answer 244

Tetrahedron

Answer 245

Octahedron

Answer 246

Converted into wires

Answer 247

Melted easily

Answer 248

Converted into sheets

Answer 249

All of these

Answer 250

CO is 3.75 times faster than CO₂

Answer 251

CO₂ is 1.25 times faster than CO

Answer 252

CO is 1.25 times faster than CO₂

Answer 253

Both diffused at the same time

Answer 254

Gets a double positive charge

Answer 255

Gets a single positive charge

Answer 256

Gets a single negative charge

Answer 257

Gets a double negative charge

Answer 258

558.5 x 6.022 x 10²³

Answer 259

Twice that in 60 g carbon

Answer 260

6.022 x 10²²

Answer 261

Half that in 8 g of He

Answer 262

Moderately

Answer 263

Polymorphism

Answer 264

None of these

Answer 265

Isomorphism

Answer 266

Dalton’s law

Answer 267

Avogadro’s law

Answer 268

Boyle’s law

Answer 269

Charles’ law

Answer 270

Fluted filter paper

Answer 271

Both A & B

Answer 272

Normal filter paper

Answer 273

Ascending paper chromatography

Answer 274

Liquid solid chromatography

Answer 275

Liquid gas chromatography

Answer 276

Descending paper chromatography

Answer 277

Liquid CO₂

Answer 278

Liquid N₂

Answer 279

Liquid O₂

Answer 280

Liquid H₂

Answer 281

127°C and 1 atm

Answer 282

0°C and 2 atm

Answer 283

273°C and 2 atm

Answer 284

S.T.P (0°C and 1 atm)

Answer 285

2 gram atom of nitrogen

Answer 286

7.0 g of Ag.

Answer 287

1 mole of S

Answer 288

3 x 10²³ atoms of C

Answer 289

Ionic compounds

Answer 290

Covalent compounds

Answer 291

Diatic bonds

Answer 292

Metallic compounds

Answer 293

Crystalline

Answer 294

Pseudo solids

Answer 295

Molecular solids

Answer 296

Covalent solids

Answer 297

Ionic solids

Answer 298

CaSO₄.2H₂O

Answer 299

6.02 x 10²³

Answer 300

3/2 x 6.02 x 10²³

Answer 301

4 x 6.02 x 10²³

Answer 302

2 x 6.02 x 10²³

Answer 303

Properties which depend upon mass

Answer 304

Arrangement of electrons in orbitals

Answer 305

Chemical properties

Answer 306

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

Answer 307

Tetra chloromethane

Answer 308

Trivalent impurity

Answer 309

Pentavalent impurity

Answer 310

Divalent impurity

Answer 311

Tetravalent

Answer 312

5 mL of 0.1 M

Answer 313

10 mL of 0.5 M

Answer 314

10 mL of 0.02 M

Answer 315

10 mL of 0.1 M

Answer 316

Boyle’s law

Answer 317

Dalton’s law

Answer 318

Graham’s law

Answer 319

Charles’ law

Answer 320

The coordination number of carbon atoms is 4

Answer 321

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

Answer 322

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

Answer 323

The carbon atoms are arranged layers

Answer 324

Is unchanged

Answer 325

Is changed by about 26%

Answer 326

Change by 33%

Answer 327

2.0478 x 10 ²⁴

Answer 328

3.0115 x 10 ²⁴

Answer 329

1.5057 x 10 ²⁴

Answer 330

4.0956 x 10 ²⁴

Answer 331

Causing pressure

Answer 332

Orderly arranged

Answer 333

Randomly moving

Answer 334

Having wide spaces

Answer 335

A, B and C

Answer 336

Isomorphism

Answer 337

Crystalline forms

Answer 338

Isotopic form

Answer 339

Decrease of surface tension

Answer 340

Increase of intermolecular interactions

Answer 341

Increase of K.E of molecules

Answer 342

Increase in potential energy of molecules

Answer 343

Number of isotopes

Answer 344

Relative abundance

Answer 345

Monoclinic

Answer 346

Rhombohedral

Answer 347

Isotropical

Total Questions:	150
Time Allowed:	60 Minutes
Total Marks:	150
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Important Chemistry Solids Question and Answer

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