Chemistry Liquids and Solids Online Mcqs Test

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Question 1

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

Answer

Altahydral manner

Answer

Hexagonal manner

Answer

Tetrahedral manner

Answer

Square planner manner

Question 2

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

Answer

4.0956 x 10 ²⁴

Answer

2.0478 x 10 ²⁴

Answer

1.5057 x 10 ²⁴

Answer

3.0115 x 10 ²⁴

Question 3

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

Answer

Tetrahedron

Answer

Octahedron

Question 4

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

Answer

Orderly arranged

Answer

Having wide spaces

Answer

Causing pressure

Answer

Randomly moving

Question 5

5. 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 6

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

Answer

-10°C and 2.0 atm

Answer

100°C and 2.0 atm

Answer

-10°C and 5.0 atm

Answer

0°C and 2.0 atm

Question 7

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

Question 8

8. Isomorphic substances have

Answer

Different physical and chemical properties

Answer

Different physical and same chemical properties

Answer

Same physical and different chemical properties

Answer

Same physical and chemical properties

Question 9

9. Amorphous substances possess

Answer

Sharp B.P.

Answer

No definite heat of fusion

Answer

Definite heat of fusion

Answer

Sharp melting points

Question 10

10. In case of elements the polymorphism is called

Answer

Crystalline forms

Answer

Isotopic form

Answer

Isomorphism

Question 11

11. Crystalline solids can be identified easily by their

Answer

All of these

Answer

Definite geometry

Answer

Transition temperature

Question 12

12. Isomorphic substance have

Answer

Different physical and same chemical properties

Answer

Different physical and chemical properties

Answer

Same physical and difference chemical properties

Answer

Same physical and chemical properties

Question 13

13. Which forms metallic crystals?

Question 14

14. 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 15

15. A malleable solid is one which can be

Answer

Converted into wires

Answer

Converted into sheets

Answer

All of these

Answer

Melted easily

Question 16

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

Answer

Free valence electrons

Answer

Ione pair of electrons

Question 17

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

Answer

Boyle’s law

Answer

Avogadro’s law

Answer

Dalton’s law

Answer

Charles’ law

Question 18

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

Question 19

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

Answer

3/2 x 6.02 x 10²³

Answer

4 x 6.02 x 10²³

Answer

6.02 x 10²³

Answer

2 x 6.02 x 10²³

Question 20

20. 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

Decrease twice

Answer

Be a function of the molecular mass of substance

Answer

Remains unchanged

Question 21

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

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

Answer

The carbon atoms are arranged layers

Question 22

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

Answer

1489 mm of Hg

Answer

790 mm of Hg

Answer

100 mm of Hg

Answer

700 mm of Hg

Question 23

23. In which one of the following does the central atom not possess an ‘octet’ in its outer shell?

Question 24

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

Question 25

25. Crystalline solids can be identified easily from their

Answer

Transition temperature

Answer

Definite geometry

Answer

Sharp melting point

Question 26

26. 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 27

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

Answer

Electrical attraction

Answer

Non covalent bond force

Answer

Covalent bond

Answer

Electrostatic force

Question 28

28. A solution of 10 mL of M/10 FeSO₄ was titrated with KMnO₄ solution in acidic medium, the amount of KMnO₄ used will be

Answer

10 mL of 0.1 M

Answer

10 mL of 0.02 M

Answer

10 mL of 0.5 M

Answer

5 mL of 0.1 M

Question 29

29. Which of the following has least mass?

Answer

3 x 10²³ atoms of C

Answer

7.0 g of Ag.

Answer

1 mole of S

Answer

2 gram atom of nitrogen

Question 30

30. Which of the following contain maximum number of atoms?

Answer

5.0 moles of SO₂

Answer

6 moles of S

Answer

44.8 dm3 CO₂ at S.T.P

Answer

20 moles of S8

Question 31

31. ‘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 32

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

Question 33

33. Ionic solids are characterized by

Answer

Low melting points

Answer

High vapour pressures

Answer

Good conductivity in solid state

Answer

Solubility in polar solvents

Question 34

34. Fluted filter paper is used for

Answer

Filtering the hot saturated solution

Answer

To dissolve large amount of substance at its boiling point

Answer

Increasing the rate of filtration

Answer

To avoid premature crystallization of the solute

Question 35

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

Answer

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

Answer

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

Answer

None of these

Answer

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

Question 36

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

Answer

Both A & B

Answer

Fluted filter paper

Answer

Normal filter paper

Question 37

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

Answer

Polymorphism

Answer

Isomorphism

Answer

Anisotropy

Question 38

38. 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 39

39. 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

Little bit less than the molar volumes of solids

Answer

Little bit greater than the molar volumes of liquid

Answer

About the same as the molar volumes of liquids

Answer

Much larger than the molar volumes of liquids and solids

Question 40

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

Question 41

41. Which solids are called true solids?

Answer

Crystalline

Question 42

42. 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 unchanged

Answer

Change by 33%

Answer

Is changed by about 26%

Question 43

43. 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 44

44. 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

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

Answer

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

Answer

A high pressure, the volume of the gas becomes insignificant

Question 45

45. Which one is not postulated in the kinetic molecular theory among the followings?

Answer

All molecular collisions are elastic

Answer

Molecules of all the gases have same size and same mass

Answer

Molecules are in chaotic motion

Answer

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

Question 46

46. 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 47

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

Question 48

48. Which of the following is isotropic

Question 49

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

Question 50

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

Question 51

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

Answer

Rhombohedral

Answer

Isotropical

Answer

Monoclinic

Question 52

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

Answer

Liquid solid chromatography

Answer

Descending paper chromatography

Answer

Liquid gas chromatography

Answer

Ascending paper chromatography

Question 53

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

Question 54

54. Which is distilled first?

Answer

Liquid N₂

Answer

Liquid H₂

Answer

Liquid O₂

Answer

Liquid CO₂

Question 55

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

Question 56

56. Potassium crystallizes with a

Answer

Cubic lattice

Answer

Ortho rhombic lattice

Answer

Orthogonal lattice

Question 57

57. 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

Allotropic crystal

Answer

Isomorphous crystals

Answer

Isomeric crystals

Answer

Liquid Crystals

Question 58

58. Poor conductors of electricity is a characteristic of

Answer

Metallic compounds

Answer

Ionic compounds

Answer

Covalent compounds

Answer

Diatic bonds

Question 59

59. Ice is ________ crystal

Question 60

60. The mass of one mole of electron is

Question 61

61. 4.4 g of CO₂ contains how many liters of CO₂ at STP?

Answer

22.4 liter

Answer

2.24 liter

Question 62

62. 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 63

63. 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 evaporates more readily than C

Answer

A and B evaporates at the same rate

Question 64

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

Answer 160

High ignition temperature

Answer 161

Low temperature

Answer 162

High concentration

Answer 163

High solubility

Answer 164

None of these

Answer 165

AB₂ type ionic compound

Answer 166

NaCl type structure

Answer 167

ZnS type structure

Answer 168

CsCl type structure

Answer 169

None of these

Answer 170

Isomorphism

Answer 171

Polymorphism

Answer 172

All of these

Answer 173

No sharp melting points

Answer 174

No definite heat of fusion

Answer 175

No definite geometry

Answer 176

None of these

Answer 177

Micro-crystalline solid

Answer 178

Super-cooled liquid

Answer 179

CH₄ and AlCl₃

Answer 180

NH₃ and BF₃

Answer 181

NH₃ and H⁺

Answer 182

H₂O and H⁺

Answer 183

Monoclimic

Answer 184

Polar compounds

Answer 185

All types of atoms and molecules

Answer 186

Relative abundance

Answer 187

Number of isotopes

Answer 188

Na(g) → N²⁺ (g) + +¯

Answer 189

Na(g) → N²⁺ (g) + e¯

Answer 190

Na(s) → N²⁺ (g) + 2e¯

Answer 191

Na(s) → N²⁺ (g) + e¯

Answer 192

14 crystal systems

Answer 193

7 crystal systems

Answer 194

4 crystal systems

Answer 195

3 crystal systems

Answer 196

A, B and C

Answer 197

Increase in potential energy of molecules

Answer 198

Decrease of surface tension

Answer 199

Increase of K.E of molecules

Answer 200

Increase of intermolecular interactions

Answer 201

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

Answer 202

One mole of NH₃ will produce 6 moles of N₂

Answer 203

One mole of NH₃ will produce ½ mole of N₂

Answer 204

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

Answer 205

558.5 x 6.022 x 10²³

Answer 206

Twice that in 60 g carbon

Answer 207

6.022 x 10²²

Answer 208

Half that in 8 g of He

Answer 209

Gas < liquid < solid

Answer 210

Gas < liquid < solid

Answer 211

Gas = liquid = solid

Answer 212

Liquid < gas < solid

Answer 213

Oxide of the gas is strongly acidic

Answer 214

Colour of the gas is greenish yellow

Answer 215

A gas is liberated

Answer 216

The gas is chlorine

Answer 217

8.5 Pounds

Answer 218

101.325 Pa

Answer 219

Crystallization

Answer 220

Chromatography

Answer 221

Solvent extraction

Answer 222

None of these

Answer 223

Organic compounds

Answer 224

Inorganic compounds

Answer 225

Both A and B

Answer 226

Acetic acid

Answer 227

Sulphuric acid

Answer 228

Chloroform

Answer 229

Pentavalent impurity

Answer 230

Tetravalent

Answer 231

Divalent impurity

Answer 232

Trivalent impurity

Answer 233

2 liter atm

Answer 234

1 liter atm

Answer 235

3 liter atm

Answer 236

Tetragonal

Answer 237

Monoclinic

Answer 238

159 mm Hg.

Answer 239

159 g/Cm²

Answer 240

Tetra chloromethane

Answer 241

CaSO₄.2H₂O

Answer 242

A and C have same reading and are less then B

Answer 243

Allotropes

Answer 244

Isoelectronic

Answer 245

None of these

Answer 246

Ionic crystals

Answer 247

Solid crystals

Answer 248

Liquid crystals

Answer 249

CO₂ is 1.25 times faster than CO

Answer 250

Both diffused at the same time

Answer 251

CO is 3.75 times faster than CO₂

Answer 252

CO is 1.25 times faster than CO₂

Answer 253

They melt over a range of temperature

Answer 254

There is no orderly arrangement of particles

Answer 255

There are rigid and in-compressible

Answer 256

They are anisotropic

Answer 257

High temperature

Answer 258

Both b and c

Answer 259

Low temperature

Answer 260

High pressure

Answer 261

8.31 x 10⁷ erg³ K¯¹ mol¯¹

Answer 262

8.31 JK¯¹ mol¯¹

Answer 263

8.31 x 10⁷ dynes Cm K¯¹ mol¯¹

Answer 264

8.31 L atm K¯¹ mol¯¹

Answer 265

5.01 x 10¯²¹ g

Answer 266

1.4 x 10¯²¹ g

Answer 267

3.72 x 10¯²³ g

Answer 268

1.3 x 10¯²⁰ g

Answer 269

Valence electrons

Answer 270

C₃H₅O₂

Answer 271

C₃H₁₀O₂

Answer 272

C₆H₁₀O₄

Answer 273

C₄H₁₀O₂

Answer 274

Anisotropy

Answer 275

Polymorphism

Answer 276

Isomorphism

Answer 277

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

Answer 278

He will feel cool

Answer 279

His blood pressure will increase

Answer 280

He will feel warmth

Answer 281

Repeated extraction and small portion of solvent

Answer 282

Repeated extraction and large portion of solvent

Answer 283

Single extraction and small portion of solvent

Answer 284

Single extraction and large portion of solvent

Answer 285

Gets a single positive charge

Answer 286

Gets a double positive charge

Answer 287

Gets a double negative charge

Answer 288

Gets a single negative charge

Answer 289

Ionic solids

Answer 290

Molecular solids

Answer 291

Pseudo solids

Answer 292

Covalent solids

Answer 293

Yb Ba₂Cu₂O₈

Answer 294

Hg Be₂Ca₂Cu₂O₈

Answer 295

Y B₂Cu₃O₇

Answer 296

Y Ba₂Cu₃O₇

Answer 297

None of these

Answer 298

2.24 liters

Answer 299

22.4 liters

Answer 300

11.2 liters

Answer 301

None of these

Answer 302

Both fcc and bcc

Answer 303

Undergo clean cleave when cut with knife

Answer 304

Have sharp melting point

Answer 305

Can possess small regions of orderly arrangement of atoms

Answer 306

Have perfect arrangement of atoms

Answer 307

The filtrate is quick

Answer 308

This gives bigger size crystals

Answer 309

This gives medium size crystals

Answer 310

Filtrate runs down without crystals

Answer 311

Lanthanides

Answer 312

Transition elements

Answer 313

p-block elements

Answer 314

S.T.P (0°C and 1 atm)

Answer 315

127°C and 1 atm

Answer 316

0°C and 2 atm

Answer 317

273°C and 2 atm

Answer 318

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

Answer 319

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

Answer 320

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

Answer 321

Gases do not have a definite shape and volume

Answer 322

Decreased volume of the solution

Answer 323

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

Answer 324

Increased attraction between the molecules

Answer 325

Decreased covalent and hydrogen bond forces

Answer 326

Moderately

Answer 327

Miller indices

Answer 328

Volume of CO₂ formed is 60 dm³

Answer 329

Volume of CO₂ formed is 25 dm³

Answer 330

Volume of O₂ required is 25 dm³

Answer 331

Volume of O₂ required is 50 dm³

Answer 332

Sublimation

Answer 333

Condensation

Answer 334

Filtration

Answer 335

Vaporization

Answer 336

Charles’ law

Answer 337

Dalton’s law

Answer 338

Graham’s law

Answer 339

Boyle’s law

Answer 340

Add dilute acid to the mixture and filter

Answer 341

Heat the mixture and allow it to cool

Answer 342

Add water to the mixture and filter

Answer 343

Place the mixture in a separating funnel

Answer 344

Metallic bonds

Answer 345

Diatic bond

Answer 346

Covalent bonds

Answer 347

Ionic compounds

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