Chemistry Liquids and Solids Online Mcqs Test

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Question 1

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

Answer

CsCl type structure

Answer

AB₂ type ionic compound

Answer

ZnS type structure

Answer

NaCl type structure

Question 2

2. 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 more readily than A

Answer

B evaporates less readily than C

Answer

A and B evaporates at the same rate

Answer

A evaporates more readily than C

Question 3

3. Ionic solids are characterized by

Answer

Low melting points

Answer

Solubility in polar solvents

Answer

Good conductivity in solid state

Answer

High vapour pressures

Question 4

4. Crystalline solids can be identified easily by their

Answer

Definite geometry

Answer

Transition temperature

Answer

All of these

Question 5

5. 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 6

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

Answer

Rhombohedral

Answer

Isotropical

Answer

Monoclinic

Question 7

7. 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 8

8. Half atmospheric pressure is

Answer

101.325 Pa

Answer

8.5 Pounds

Question 9

9. The weight of one molecule of a compound C₆₀H₁₂₂ is

Answer

3.72 x 10¯²³ g

Answer

5.01 x 10¯²¹ g

Answer

1.3 x 10¯²⁰ g

Answer

1.4 x 10¯²¹ g

Question 10

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

Answer

Moderately

Question 11

11. Which of the following is isotropic

Question 12

12. How many allotropic forms are present in carbon?

Question 13

13. Crystalline solids can be identified easily from their

Answer

Definite geometry

Answer

Transition temperature

Answer

Sharp melting point

Question 14

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

Question 15

15. 4.4 g of CO₂ contains how many liters of CO₂ at STP?

Answer

2.24 liter

Answer

22.4 liter

Question 16

16. Which is distilled first?

Answer

Liquid N₂

Answer

Liquid CO₂

Answer

Liquid H₂

Answer

Liquid O₂

Question 17

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

Answer

Ione pair of electrons

Answer

Free valence electrons

Question 18

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

Answer

6.02 x 10²³

Answer

4 x 6.02 x 10²³

Answer

3/2 x 6.02 x 10²³

Answer

2 x 6.02 x 10²³

Question 19

19. Ice is ________ crystal

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. Which one is not usually used for the crystallization?

Answer

Chloroform

Answer

Acetic acid

Answer

Sulphuric acid

Question 22

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

Answer

They are anisotropic

Answer

They melt over a range of temperature

Answer

There is no orderly arrangement of particles

Answer

There are rigid and in-compressible

Question 23

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

Answer

Gets a single negative charge

Answer

Gets a double positive charge

Answer

Gets a double negative charge

Answer

Gets a single positive charge

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

Question 26

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

Question 27

27. 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 28

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

Question 29

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

Answer

Polymorphism

Answer

Anisotropy

Answer

Isomorphism

Question 30

30. For c coordination number of four, anion sits at the center of ________ where corners are occupied by cations

Answer

Octahedron

Answer

Tetrahedron

Question 31

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

Answer

Normal filter paper

Answer

Both A & B

Answer

Fluted filter paper

Question 32

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

Question 33

33. Solvent extraction is mostly applied to separate

Answer

None of these

Answer

Organic compounds

Answer

Inorganic compounds

Answer

Both A and B

Question 34

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

Answer

The filtrate is quick

Answer

This gives medium size crystals

Answer

Filtrate runs down without crystals

Answer

This gives bigger size crystals

Question 35

35. 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

Change by 33%

Answer

Is unchanged

Question 36

36. 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 37

37. Solvents of covalent compounds include all but

Answer

Tetra chloromethane

Question 38

38. Isomorphic substance have

Answer

Same physical and chemical properties

Answer

Different physical and same chemical properties

Answer

Same physical and difference chemical properties

Answer

Different physical and chemical properties

Question 39

39. Under what conditions real gases deviate from ideal behavior

Answer

High temperature

Answer

High pressure

Answer

Both b and c

Answer

Low temperature

Question 40

40. The most efficient solvent extraction method is by using

Answer

Repeated extraction and large portion of solvent

Answer

Single extraction and small portion of solvent

Answer

Repeated extraction and small portion of solvent

Answer

Single extraction and large portion of solvent

Question 41

41. Gases deviate from ideal behavior at high pressure. Which of the following is correct for non – ideality?

Answer

At high pressure, the intermolecular attraction becomes significant

Answer

A high pressure, the volume of the gas becomes insignificant

Answer

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

Answer

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

Question 42

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

Question 43

43. The material possessing superconducting properties is

Answer

Y B₂Cu₃O₇

Answer

Y Ba₂Cu₃O₇

Answer

Hg Be₂Ca₂Cu₂O₈

Answer

Yb Ba₂Cu₂O₈

Question 44

44. Potassium crystallizes with a

Answer

Orthogonal lattice

Answer

Cubic lattice

Answer

Ortho rhombic lattice

Question 45

45. Isotopes differ in

Answer

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

Answer

Properties which depend upon mass

Answer

Chemical properties

Answer

Arrangement of electrons in orbitals

Question 46

46. 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 47

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

Answer

Trivalent impurity

Answer

Pentavalent impurity

Answer

Divalent impurity

Answer

Tetravalent

Question 48

48. Which of the following has least mass?

Answer

3 x 10²³ atoms of C

Answer

7.0 g of Ag.

Answer

2 gram atom of nitrogen

Answer

1 mole of S

Question 49

49. Van der Waal’s forces exist in

Answer

Polar compounds

Answer

All types of atoms and molecules

Question 50

50. 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 51

51. Which of the following is a pseudo solid?

Question 52

52. The allotropic forms of an element are called

Answer

Allotropes

Answer

Isoelectronic

Question 53

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

Question 54

54. Which of the following substances is not amorphous?

Question 55

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

Question 56

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

Answer

None of these

Answer

Both fcc and bcc

Question 57

57. Super conductors are derived from compounds of

Answer

p-block elements

Answer

Transition elements

Answer

Lanthanides

Question 58

58. 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 59

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

Answer

790 mm of Hg

Answer

700 mm of Hg

Answer

100 mm of Hg

Answer

1489 mm of Hg

Question 60

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

Question 61

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

Question 62

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

Question 63

63. Fluted filter paper is used for

Answer

To avoid premature crystallization of the solute

Answer

To dissolve large amount of substance at its boiling point

Answer

Filtering the hot saturated solution

Answer

Increasing the rate of filtration

Question 64

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

Answer

Oxide of the gas is strongly acidic

Answer

A gas is liberated

Answer

The gas is chlorine

Answer

Colour of the gas is greenish yellow

Answer 148

None of these

Answer 149

3.0115 x 10 ²⁴

Answer 150

1.5057 x 10 ²⁴

Answer 151

2.0478 x 10 ²⁴

Answer 152

4.0956 x 10 ²⁴

Answer 153

A, B and C

Answer 154

High solubility

Answer 155

High ignition temperature

Answer 156

High concentration

Answer 157

Low temperature

Answer 158

NH₃ and BF₃

Answer 159

NH₃ and H⁺

Answer 160

H₂O and H⁺

Answer 161

CH₄ and AlCl₃

Answer 162

Decreased covalent and hydrogen bond forces

Answer 163

Decreased volume of the solution

Answer 164

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

Answer 165

Increased attraction between the molecules

Answer 166

Sublimation

Answer 167

Vaporization

Answer 168

Filtration

Answer 169

Condensation

Answer 170

Volume of CO₂ formed is 25 dm³

Answer 171

Volume of O₂ required is 25 dm³

Answer 172

Volume of O₂ required is 50 dm³

Answer 173

Volume of CO₂ formed is 60 dm³

Answer 174

Chromatography

Answer 175

Crystallization

Answer 176

Solvent extraction

Answer 177

C₆H₁₀O₄

Answer 178

C₃H₅O₂

Answer 179

C₃H₁₀O₂

Answer 180

C₄H₁₀O₂

Answer 181

Charles’ law

Answer 182

Dalton’s law

Answer 183

Boyle’s law

Answer 184

Avogadro’s law

Answer 185

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

Answer 186

His blood pressure will increase

Answer 187

He will feel cool

Answer 188

He will feel warmth

Answer 189

Undergo clean cleave when cut with knife

Answer 190

Can possess small regions of orderly arrangement of atoms

Answer 191

Have sharp melting point

Answer 192

Have perfect arrangement of atoms

Answer 193

-10°C and 2.0 atm

Answer 194

100°C and 2.0 atm

Answer 195

0°C and 2.0 atm

Answer 196

-10°C and 5.0 atm

Answer 197

Same physical and chemical properties

Answer 198

Same physical and different chemical properties

Answer 199

Different physical and chemical properties

Answer 200

Different physical and same chemical properties

Answer 201

Heat the mixture and allow it to cool

Answer 202

Add water to the mixture and filter

Answer 203

Add dilute acid to the mixture and filter

Answer 204

Place the mixture in a separating funnel

Answer 205

Relative abundance

Answer 206

Number of isotopes

Answer 207

10 mL of 0.02 M

Answer 208

10 mL of 0.1 M

Answer 209

10 mL of 0.5 M

Answer 210

5 mL of 0.1 M

Answer 211

The coordination number of carbon atoms is 4

Answer 212

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

Answer 213

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

Answer 214

The carbon atoms are arranged layers

Answer 215

Charles’ law

Answer 216

Boyle’s law

Answer 217

Dalton’s law

Answer 218

Graham’s law

Answer 219

None of these

Answer 220

Converted into sheets

Answer 221

Melted easily

Answer 222

All of these

Answer 223

Converted into wires

Answer 224

Ionic crystals

Answer 225

Liquid crystals

Answer 226

Solid crystals

Answer 227

None of these

Answer 228

Liquid < gas < solid

Answer 229

Gas = liquid = solid

Answer 230

Gas < liquid < solid

Answer 231

Gas < liquid < solid

Answer 232

None of these

Answer 233

Micro-crystalline solid

Answer 234

Super-cooled liquid

Answer 235

One mole of NH₃ will produce ½ mole of N₂

Answer 236

One mole of NH₃ will produce 6 moles of N₂

Answer 237

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

Answer 238

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

Answer 239

CO is 3.75 times faster than CO₂

Answer 240

CO₂ is 1.25 times faster than CO

Answer 241

CO is 1.25 times faster than CO₂

Answer 242

Both diffused at the same time

Answer 243

Crystalline forms

Answer 244

Isomorphism

Answer 245

Isotopic form

Answer 246

Non-polar nature of gases

Answer 247

Different molar mass

Answer 248

Elastic collisions of gas molecules

Answer 249

Pressure of dust particles in air

Answer 250

No definite geometry

Answer 251

All of these

Answer 252

No definite heat of fusion

Answer 253

No sharp melting points

Answer 254

Monoclinic

Answer 255

Tetragonal

Answer 256

Diatic bonds

Answer 257

Metallic compounds

Answer 258

Ionic compounds

Answer 259

Covalent compounds

Answer 260

159 g/Cm²

Answer 261

159 mm Hg.

Answer 262

Half that in 8 g of He

Answer 263

Twice that in 60 g carbon

Answer 264

558.5 x 6.022 x 10²³

Answer 265

6.022 x 10²²

Answer 266

nλ = 2 θ sin θ

Answer 267

nλ = 1/2d sin θ

Answer 268

nλ = 2 d sin θ

Answer 269

2nλ = d sin θ

Answer 270

Molecules of all the gases have same size and same mass

Answer 271

All molecular collisions are elastic

Answer 272

Molecules are in chaotic motion

Answer 273

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

Answer 274

Isomorphous crystals

Answer 275

Liquid Crystals

Answer 276

Allotropic crystal

Answer 277

Isomeric crystals

Answer 278

Polymorphism

Answer 279

Isomorphism

Answer 280

Anisotropy

Answer 281

Monoclimic

Answer 282

Ascending paper chromatography

Answer 283

Descending paper chromatography

Answer 284

Liquid gas chromatography

Answer 285

Liquid solid chromatography

Answer 286

Increase two fold

Answer 287

Decrease twice

Answer 288

Be a function of the molecular mass of substance

Answer 289

Remains unchanged

Answer 290

Randomly moving

Answer 291

Causing pressure

Answer 292

Having wide spaces

Answer 293

Orderly arranged

Answer 294

44.8 dm3 CO₂ at S.T.P

Answer 295

20 moles of S8

Answer 296

5.0 moles of SO₂

Answer 297

6 moles of S

Answer 298

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

Answer 299

Gases do not have a definite shape and volume

Answer 300

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

Answer 301

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

Answer 302

8.31 x 10⁷ erg³ K¯¹ mol¯¹

Answer 303

8.31 JK¯¹ mol¯¹

Answer 304

8.31 x 10⁷ dynes Cm K¯¹ mol¯¹

Answer 305

8.31 L atm K¯¹ mol¯¹

Answer 306

Na(g) → N²⁺ (g) + e¯

Answer 307

Na(g) → N²⁺ (g) + +¯

Answer 308

Na(s) → N²⁺ (g) + e¯

Answer 309

Na(s) → N²⁺ (g) + 2e¯

Answer 310

Valence electrons

Answer 311

S.T.P (0°C and 1 atm)

Answer 312

273°C and 2 atm

Answer 313

127°C and 1 atm

Answer 314

0°C and 2 atm

Answer 315

Increase of K.E of molecules

Answer 316

Increase in potential energy of molecules

Answer 317

Decrease of surface tension

Answer 318

Increase of intermolecular interactions

Answer 319

None of these

Answer 320

Isomorphism

Answer 321

Polymorphism

Answer 322

4 crystal systems

Answer 323

3 crystal systems

Answer 324

7 crystal systems

Answer 325

14 crystal systems

Answer 326

3 liter atm

Answer 327

2 liter atm

Answer 328

1 liter atm

Answer 329

1 atm, and 273 K

Answer 330

15 tm, and 500 K

Answer 331

15 atm, and 200 K

Answer 332

0.5 atm, and 500 K

Answer 333

Miller indices

Answer 334

About the same as the molar volumes of liquids

Answer 335

Much larger than the molar volumes of liquids and solids

Answer 336

Little bit greater than the molar volumes of liquid

Answer 337

Little bit less than the molar volumes of solids

Answer 338

CaSO₄.2H₂O

Answer 339

Crystalline

Answer 340

Molecular solids

Answer 341

Covalent solids

Answer 342

Ionic solids

Answer 343

Pseudo solids

Answer 344

Diatic bond

Answer 345

Covalent bonds

Answer 346

Ionic compounds

Answer 347

Metallic bonds

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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Important Chemistry Solids Question and Answer

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