Chemistry Liquids and Solids Online Mcqs Test

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Question 1

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

Question 2

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

Answer

Ionic solids

Answer

Pseudo solids

Answer

Covalent solids

Answer

Molecular solids

Question 3

3. 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 gas chromatography

Answer

Liquid solid chromatography

Answer

Ascending paper chromatography

Question 4

4. Under what conditions real gases deviate from ideal behavior

Answer

High pressure

Answer

Both b and c

Answer

High temperature

Answer

Low temperature

Question 5

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

Answer

Both fcc and bcc

Answer

None of these

Question 6

6. 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

Little bit less than the molar volumes of solids

Answer

About the same as the molar volumes of liquids

Question 7

7. 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 8

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

Answer

Sulphuric acid

Answer

Chloroform

Answer

Acetic acid

Question 9

9. The crystal structure having face centered cubic arrangement is

Question 10

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

Answer

Moderately

Question 11

11. How many allotropic forms are present in carbon?

Question 12

12. 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 13

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

Question 14

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

Answer

Monoclimic

Question 15

15. The molar volume of CO₂ is maximum at

Answer

273°C and 2 atm

Answer

127°C and 1 atm

Answer

S.T.P (0°C and 1 atm)

Answer

0°C and 2 atm

Question 16

16. How many Cl¯ ions are there around Na⁺ ion in NaCl crystal?

Question 17

17. At STP, a container has 1 mole of Ar, 2 moles of CO₂, 3 moles of O₂ and 4 moles of N₂, Without changing the total pressure if one mole of O₂ is removed, the partial pressure of O₂

Answer

Is changed by about 26%

Answer

Is unchanged

Answer

Change by 33%

Question 18

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

Question 19

19. Wt. of 112 ml of oxygen at STP on liquefaction would be

Question 20

20. Triple point of water is

Question 21

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

Answer

Rhombohedral

Answer

Isotropical

Answer

Monoclinic

Question 22

22. 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

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

Answer

All molecular collisions are elastic

Question 23

23. Which is distilled first?

Answer

Liquid CO₂

Answer

Liquid N₂

Answer

Liquid H₂

Answer

Liquid O₂

Question 24

24. Pressure remaining constant at which temperature the volume of a gas will become twice o what it is at 0°C

Question 25

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

Answer

Relative abundance

Answer

Number of isotopes

Question 26

26. Van der Waal’s forces exist in

Answer

Polar compounds

Answer

All types of atoms and molecules

Question 27

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

Answer

They melt over a range of temperature

Answer

There are rigid and in-compressible

Answer

They are anisotropic

Answer

There is no orderly arrangement of particles

Question 28

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

Answer

Non covalent bond force

Answer

Electrostatic force

Answer

Covalent bond

Answer

Electrical attraction

Question 29

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

Question 30

30. 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 31

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

Question 32

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

Answer

The carbon atoms are arranged layers

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 layers in graphite are attracted to each other by weak forces

Question 33

33. The allotropic forms of an element are called

Answer

Allotropes

Answer

Isoelectronic

Question 34

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

Answer

Dalton’s law

Answer

Boyle’s law

Answer

Charles’ law

Answer

Graham’s law

Question 35

35. Potassium crystallizes with a

Answer

Orthogonal lattice

Answer

Ortho rhombic lattice

Answer

Cubic lattice

Question 36

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

Answer

8.31 L atm K¯¹ mol¯¹

Answer

8.31 x 10⁷ erg³ K¯¹ mol¯¹

Answer

8.31 x 10⁷ dynes Cm K¯¹ mol¯¹

Answer

8.31 JK¯¹ mol¯¹

Question 37

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

Answer

CO is 3.75 times faster than 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

Question 38

38. 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 39

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

Answer

Normal filter paper

Answer

Both A & B

Answer

Fluted filter paper

Question 40

40. Formation of a cation is?

Question 41

41. Isotopes differ in

Answer

Arrangement of electrons in orbitals

Answer

Chemical properties

Answer

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

Answer

Properties which depend upon mass

Question 42

42. 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

A and B evaporates at the same rate

Answer

B evaporates less readily than C

Answer

B evaporates more readily than A

Answer

A evaporates more readily than C

Question 43

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

Answer

Filtrate runs down without crystals

Answer

This gives bigger size crystals

Answer

The filtrate is quick

Answer

This gives medium size crystals

Question 44

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

Question 45

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

Answer

Isomorphism

Answer

Polymorphism

Answer

Anisotropy

Question 46

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

Answer

6.02 x 10²³

Answer

2 x 6.02 x 10²³

Answer

4 x 6.02 x 10²³

Answer

3/2 x 6.02 x 10²³

Question 47

47. ‘x’ grams of calcium carbonate was completely burnt in air. The weight of the solid residue formed is 28 g. What is the value of ‘x’ in grams?

Question 48

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

Answer

NaCl type structure

Answer

CsCl type structure

Answer

AB₂ type ionic compound

Answer

ZnS type structure

Question 49

49. Which of the following is isotropic

Question 50

50. 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 51

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

Answer

Na(s) → N²⁺ (g) + 2e¯

Answer

Na(s) → N²⁺ (g) + e¯

Answer

Na(g) → N²⁺ (g) + e¯

Answer

Na(g) → N²⁺ (g) + +¯

Question 52

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

Question 53

53. Amorphous solids

Answer

Can possess small regions of orderly arrangement of atoms

Answer

Have sharp melting point

Answer

Have perfect arrangement of atoms

Answer

Undergo clean cleave when cut with knife

Question 54

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

Answer

Non-polar nature of gases

Answer

Pressure of dust particles in air

Answer

Elastic collisions of gas molecules

Answer

Different molar mass

Question 55

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

Answer

1.5057 x 10 ²⁴

Answer

2.0478 x 10 ²⁴

Answer

3.0115 x 10 ²⁴

Answer

4.0956 x 10 ²⁴

Question 56

56. Which forms metallic crystals?

Question 57

57. Crystalline solids can be identified easily by their

Answer

Transition temperature

Answer

Definite geometry

Answer

All of these

Question 58

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

Answer

NH₃ and BF₃

Answer

CH₄ and AlCl₃

Answer

NH₃ and H⁺

Answer

H₂O and H⁺

Question 59

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

Answer

Decreased covalent and hydrogen bond forces

Answer

Decreased volume of the solution

Answer

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

Answer

Increased attraction between the molecules

Question 60

60. Simple molecules or giant macromolecules are examples of

Answer

Ionic compounds

Answer

Covalent bonds

Answer

Diatic bond

Answer

Metallic bonds

Question 61

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

Question 62

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

Answer

1 atm, and 273 K

Answer

15 atm, and 200 K

Answer

15 tm, and 500 K

Answer

0.5 atm, and 500 K

Question 63

63. Bragg’s law is given by equation

Answer

nλ = 2 θ sin θ

Answer

nλ = 1/2d sin θ

Answer

2nλ = d sin θ

Answer

nλ = 2 d sin θ

Question 64

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

Answer 147

Transition temperature

Answer 148

Sharp melting point

Answer 149

Definite geometry

Answer 150

Volume of O₂ required is 50 dm³

Answer 151

Volume of CO₂ formed is 60 dm³

Answer 152

Volume of CO₂ formed is 25 dm³

Answer 153

Volume of O₂ required is 25 dm³

Answer 154

Converted into wires

Answer 155

Converted into sheets

Answer 156

All of these

Answer 157

Melted easily

Answer 158

Same physical and difference chemical properties

Answer 159

Same physical and chemical properties

Answer 160

Different physical and same chemical properties

Answer 161

Different physical and chemical properties

Answer 162

101.325 Pa

Answer 163

8.5 Pounds

Answer 164

He will feel cool

Answer 165

His blood pressure will increase

Answer 166

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

Answer 167

He will feel warmth

Answer 168

44.8 dm3 CO₂ at S.T.P

Answer 169

5.0 moles of SO₂

Answer 170

20 moles of S8

Answer 171

6 moles of S

Answer 172

Miller indices

Answer 173

A, B and C

Answer 174

At high pressure, the intermolecular attraction becomes significant

Answer 175

A high pressure, the volume of the gas becomes insignificant

Answer 176

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

Answer 177

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

Answer 178

None of these

Answer 179

Gas < liquid < solid

Answer 180

Gas = liquid = solid

Answer 181

Gas < liquid < solid

Answer 182

Liquid < gas < solid

Answer 183

1 liter atm

Answer 184

2 liter atm

Answer 185

3 liter atm

Answer 186

None of these

Answer 187

Liquid crystals

Answer 188

None of these

Answer 189

Ionic crystals

Answer 190

Solid crystals

Answer 191

Crystallization

Answer 192

Chromatography

Answer 193

Solvent extraction

Answer 194

Covalent compounds

Answer 195

Ionic compounds

Answer 196

Diatic bonds

Answer 197

Metallic compounds

Answer 198

Tetrahedron

Answer 199

Octahedron

Answer 200

Oxide of the gas is strongly acidic

Answer 201

Colour of the gas is greenish yellow

Answer 202

A gas is liberated

Answer 203

The gas is chlorine

Answer 204

6.022 x 10²²

Answer 205

Twice that in 60 g carbon

Answer 206

Half that in 8 g of He

Answer 207

558.5 x 6.022 x 10²³

Answer 208

C₄H₁₀O₂

Answer 209

C₆H₁₀O₄

Answer 210

C₃H₅O₂

Answer 211

C₃H₁₀O₂

Answer 212

Free valence electrons

Answer 213

Ione pair of electrons

Answer 214

One mole of NH₃ will produce 6 moles of N₂

Answer 215

One mole of NH₃ will produce ½ mole of N₂

Answer 216

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

Answer 217

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

Answer 218

Liquid Crystals

Answer 219

Isomorphous crystals

Answer 220

Allotropic crystal

Answer 221

Isomeric crystals

Answer 222

Decrease twice

Answer 223

Remains unchanged

Answer 224

Be a function of the molecular mass of substance

Answer 225

Increase two fold

Answer 226

None of these

Answer 227

Organic compounds

Answer 228

Both A and B

Answer 229

Inorganic compounds

Answer 230

Divalent impurity

Answer 231

Tetravalent

Answer 232

Trivalent impurity

Answer 233

Pentavalent impurity

Answer 234

Low temperature

Answer 235

High ignition temperature

Answer 236

High concentration

Answer 237

High solubility

Answer 238

Square planner manner

Answer 239

Hexagonal manner

Answer 240

Tetrahedral manner

Answer 241

Altahydral manner

Answer 242

Isomorphism

Answer 243

Crystalline forms

Answer 244

Isotopic form

Answer 245

159 mm Hg.

Answer 246

159 g/Cm²

Answer 247

No definite heat of fusion

Answer 248

Sharp melting points

Answer 249

Sharp B.P.

Answer 250

Definite heat of fusion

Answer 251

7 crystal systems

Answer 252

4 crystal systems

Answer 253

14 crystal systems

Answer 254

3 crystal systems

Answer 255

Increasing the rate of filtration

Answer 256

To avoid premature crystallization of the solute

Answer 257

Filtering the hot saturated solution

Answer 258

To dissolve large amount of substance at its boiling point

Answer 259

Lanthanides

Answer 260

p-block elements

Answer 261

Transition elements

Answer 262

3 x 10²³ atoms of C

Answer 263

2 gram atom of nitrogen

Answer 264

1 mole of S

Answer 265

7.0 g of Ag.

Answer 266

Having wide spaces

Answer 267

Orderly arranged

Answer 268

Randomly moving

Answer 269

Causing pressure

Answer 270

Charles’ law

Answer 271

Boyle’s law

Answer 272

Avogadro’s law

Answer 273

Dalton’s law

Answer 274

Anisotropy

Answer 275

Polymorphism

Answer 276

Isomorphism

Answer 277

-10°C and 5.0 atm

Answer 278

100°C and 2.0 atm

Answer 279

0°C and 2.0 atm

Answer 280

-10°C and 2.0 atm

Answer 281

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

Answer 282

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

Answer 283

None of these

Answer 284

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

Answer 285

2.24 liter

Answer 286

22.4 liter

Answer 287

Tetra chloromethane

Answer 288

Filtration

Answer 289

Condensation

Answer 290

Sublimation

Answer 291

Vaporization

Answer 292

All of these

Answer 293

No sharp melting points

Answer 294

No definite heat of fusion

Answer 295

No definite geometry

Answer 296

Gases do not have a definite shape and volume

Answer 297

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

Answer 298

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

Answer 299

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

Answer 300

790 mm of Hg

Answer 301

700 mm of Hg

Answer 302

100 mm of Hg

Answer 303

1489 mm of Hg

Answer 304

5 mL of 0.1 M

Answer 305

10 mL of 0.1 M

Answer 306

10 mL of 0.02 M

Answer 307

10 mL of 0.5 M

Answer 308

CaSO₄.2H₂O

Answer 309

Place the mixture in a separating funnel

Answer 310

Add dilute acid to the mixture and filter

Answer 311

Heat the mixture and allow it to cool

Answer 312

Add water to the mixture and filter

Answer 313

Valence electrons

Answer 314

Tetragonal

Answer 315

Monoclinic

Answer 316

None of these

Answer 317

Micro-crystalline solid

Answer 318

Super-cooled liquid

Answer 319

None of these

Answer 320

Isomorphism

Answer 321

Polymorphism

Answer 322

Y B₂Cu₃O₇

Answer 323

Yb Ba₂Cu₂O₈

Answer 324

Y Ba₂Cu₃O₇

Answer 325

Hg Be₂Ca₂Cu₂O₈

Answer 326

Decrease of surface tension

Answer 327

Increase of intermolecular interactions

Answer 328

Increase in potential energy of molecules

Answer 329

Increase of K.E of molecules

Answer 330

5.01 x 10¯²¹ g

Answer 331

1.4 x 10¯²¹ g

Answer 332

3.72 x 10¯²³ g

Answer 333

1.3 x 10¯²⁰ g

Answer 334

High vapour pressures

Answer 335

Good conductivity in solid state

Answer 336

Low melting points

Answer 337

Solubility in polar solvents

Answer 338

A and C have same reading and are less then B

Answer 339

Repeated extraction and large portion of solvent

Answer 340

Repeated extraction and small portion of solvent

Answer 341

Single extraction and large portion of solvent

Answer 342

Single extraction and small portion of solvent

Answer 343

Gets a single negative charge

Answer 344

Gets a single positive charge

Answer 345

Gets a double negative charge

Answer 346

Gets a double positive charge

Answer 347

Crystalline

Total Questions:	150
Time Allowed:	60 Minutes
Total Marks:	150
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