Chemistry Liquids and Solids Online Mcqs Test

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Question 1

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

Answer

Monoclimic

Question 2

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

Answer

The coordination number of carbon atoms is 4

Answer

The carbon atoms are arranged layers

Answer

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

Answer

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

Question 3

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

Question 4

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

Answer

Relative abundance

Answer

Number of isotopes

Question 5

5. Which of the following is isotropic

Question 6

6. 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

5 mL of 0.1 M

Answer

10 mL of 0.02 M

Answer

10 mL of 0.1 M

Answer

10 mL of 0.5 M

Question 7

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

Answer

Isomorphism

Answer

None of these

Answer

Polymorphism

Question 8

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

Answer

Tetrahedral manner

Answer

Altahydral manner

Answer

Square planner manner

Answer

Hexagonal manner

Question 9

9. 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 10

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

Answer

CsCl type structure

Answer

ZnS type structure

Answer

AB₂ type ionic compound

Answer

NaCl type structure

Question 11

11. Glass is a

Answer

Micro-crystalline solid

Answer

None of these

Answer

Super-cooled liquid

Question 12

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

Answer

Condensation

Answer

Filtration

Answer

Vaporization

Answer

Sublimation

Question 13

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

Answer

Solvent extraction

Answer

Crystallization

Answer

Chromatography

Question 14

14. 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

1 liter atm

Answer

2 liter atm

Answer

3 liter atm

Question 15

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

Answer

Elastic collisions of gas molecules

Answer

Pressure of dust particles in air

Answer

Non-polar nature of gases

Answer

Different molar mass

Question 16

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

Answer

None of these

Question 17

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

Question 18

18. Amorphous substances possess

Answer

No definite heat of fusion

Answer

Sharp B.P.

Answer

Sharp melting points

Answer

Definite heat of fusion

Question 19

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

Question 20

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

Answer

Having wide spaces

Answer

Randomly moving

Answer

Orderly arranged

Answer

Causing pressure

Question 21

21. Which of the following are more temperature sensitive?

Answer

None of these

Answer

Ionic crystals

Answer

Liquid crystals

Answer

Solid crystals

Question 22

22. 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 23

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

Answer

High concentration

Answer

High solubility

Answer

Low temperature

Answer

High ignition temperature

Question 24

24. A solid may be made up of

Answer

A, B and C

Question 25

25. Which is distilled first?

Answer

Liquid CO₂

Answer

Liquid O₂

Answer

Liquid H₂

Answer

Liquid N₂

Question 26

26. Under what conditions real gases deviate from ideal behavior

Answer

High pressure

Answer

Low temperature

Answer

High temperature

Answer

Both b and c

Question 27

27. Amorphous substance posses

Answer

No definite geometry

Answer

No sharp melting points

Answer

All of these

Answer

No definite heat of fusion

Question 28

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

Question 29

29. ‘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 30

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

Question 31

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

Answer

None of these

Question 32

32. Which of the following has least mass?

Answer

2 gram atom of nitrogen

Answer

1 mole of S

Answer

3 x 10²³ atoms of C

Answer

7.0 g of Ag.

Question 33

33. 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) + +¯

Answer

Na(g) → N²⁺ (g) + e¯

Question 34

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

Answer

4 x 6.02 x 10²³

Answer

3/2 x 6.02 x 10²³

Answer

6.02 x 10²³

Answer

2 x 6.02 x 10²³

Question 35

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

Answer

Normal filter paper

Answer

Both A & B

Answer

Fluted filter paper

Question 36

36. Crystalline solids can be identified easily from their

Answer

Definite geometry

Answer

Transition temperature

Answer

Sharp melting point

Question 37

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

Answer

Increase of intermolecular interactions

Answer

Decrease of surface tension

Answer

Increase of K.E of molecules

Answer

Increase in potential energy of molecules

Question 38

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

Answer

NH₃ and BF₃

Answer

H₂O and H⁺

Answer

NH₃ and H⁺

Answer

CH₄ and AlCl₃

Question 39

39. Which forms metallic crystals?

Question 40

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

Answer

CO is 3.75 times faster than CO₂

Answer

Both diffused at the same time

Answer

CO₂ is 1.25 times faster than CO

Answer

CO is 1.25 times faster than CO₂

Question 41

41. 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 42

42. Solvent extraction is mostly applied to separate

Answer

None of these

Answer

Both A and B

Answer

Inorganic compounds

Answer

Organic compounds

Question 43

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

Answer

Boyle’s law

Answer

Dalton’s law

Answer

Avogadro’s law

Answer

Charles’ law

Question 44

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

Answer

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

Answer

Decreased covalent and hydrogen bond forces

Answer

Decreased volume of the solution

Answer

Increased attraction between the molecules

Question 45

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

Answer

Isomorphism

Answer

Anisotropy

Answer

Polymorphism

Question 46

46. Half atmospheric pressure is

Answer

101.325 Pa

Answer

8.5 Pounds

Question 47

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

Answer

Pseudo solids

Answer

Molecular solids

Answer

Covalent solids

Answer

Ionic solids

Question 48

48. Isomorphic substances have

Answer

Same physical and different chemical properties

Answer

Different physical and same chemical properties

Answer

Different physical and chemical properties

Answer

Same physical and chemical properties

Question 49

49. The example of hexagonal system is

Question 50

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

Answer

Heat the mixture and allow it to cool

Answer

Add water to the mixture and filter

Answer

Place the mixture in a separating funnel

Answer

Add dilute acid to the mixture and filter

Question 51

51. Ionic solids are characterized by

Answer

Low melting points

Answer

Good conductivity in solid state

Answer

Solubility in polar solvents

Answer

High vapour pressures

Question 52

52. Isotopes differ in

Answer

Chemical properties

Answer

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

Answer

Arrangement of electrons in orbitals

Answer

Properties which depend upon mass

Question 53

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

Question 54

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

Answer

Non covalent bond force

Answer

Covalent bond

Answer

Electrical attraction

Answer

Electrostatic force

Question 55

55. Poor conductors of electricity is a characteristic of

Answer

Covalent compounds

Answer

Ionic compounds

Answer

Metallic compounds

Answer

Diatic bonds

Question 56

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

Question 57

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

Answer

Tetravalent

Answer

Divalent impurity

Answer

Trivalent impurity

Answer

Pentavalent impurity

Question 58

58. Amorphous solids

Answer

Have perfect arrangement of atoms

Answer

Have sharp melting point

Answer

Can possess small regions of orderly arrangement of atoms

Answer

Undergo clean cleave when cut with knife

Question 59

59. Crystalline solids can be identified easily by their

Answer

Transition temperature

Answer

All of these

Answer

Definite geometry

Question 60

60. Crystals can be classified into

Answer

7 crystal systems

Answer

14 crystal systems

Answer

4 crystal systems

Answer

3 crystal systems

Question 61

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

Answer

A gas is liberated

Answer

The gas is chlorine

Answer

Colour of the gas is greenish yellow

Answer

Oxide of the gas is strongly acidic

Question 62

62. If the four tubes of a car are filled to the same pressure with N₂, O₂, H₂ and helium separately, then which one will be filled first

Question 63

63. An organic compound contains 49.3% carbon, 6.84% hydrogen and its vapour density is 73. Molecular formula of compound is

Answer

C₆H₁₀O₄

Answer

C₃H₁₀O₂

Answer

C₃H₅O₂

Answer

C₄H₁₀O₂

Question 64

64. Which of the following substances is not amorphous?

Answer 173

Y Ba₂Cu₃O₇

Answer 174

Y B₂Cu₃O₇

Answer 175

Yb Ba₂Cu₂O₈

Answer 176

Hg Be₂Ca₂Cu₂O₈

Answer 177

Moderately

Answer 178

Dalton’s law

Answer 179

Boyle’s law

Answer 180

Graham’s law

Answer 181

Charles’ law

Answer 182

Molecules are in chaotic motion

Answer 183

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

Answer 184

Molecules of all the gases have same size and same mass

Answer 185

All molecular collisions are elastic

Answer 186

Different physical and same chemical properties

Answer 187

Same physical and difference chemical properties

Answer 188

Different physical and chemical properties

Answer 189

Same physical and chemical properties

Answer 190

Crystalline

Answer 191

Transition elements

Answer 192

p-block elements

Answer 193

Lanthanides

Answer 194

44.8 dm3 CO₂ at S.T.P

Answer 195

6 moles of S

Answer 196

20 moles of S8

Answer 197

5.0 moles of SO₂

Answer 198

Increase two fold

Answer 199

Decrease twice

Answer 200

Be a function of the molecular mass of substance

Answer 201

Remains unchanged

Answer 202

4.0956 x 10 ²⁴

Answer 203

2.0478 x 10 ²⁴

Answer 204

3.0115 x 10 ²⁴

Answer 205

1.5057 x 10 ²⁴

Answer 206

273°C and 2 atm

Answer 207

0°C and 2 atm

Answer 208

127°C and 1 atm

Answer 209

S.T.P (0°C and 1 atm)

Answer 210

Both fcc and bcc

Answer 211

None of these

Answer 212

Miller indices

Answer 213

Tetra chloromethane

Answer 214

22.4 liters

Answer 215

2.24 liters

Answer 216

11.2 liters

Answer 217

Acetic acid

Answer 218

Chloroform

Answer 219

Sulphuric acid

Answer 220

CaSO₄.2H₂O

Answer 221

2.24 liter

Answer 222

22.4 liter

Answer 223

A and B evaporates at the same rate

Answer 224

A evaporates more readily than C

Answer 225

B evaporates less readily than C

Answer 226

B evaporates more readily than A

Answer 227

At high pressure, the intermolecular attraction becomes significant

Answer 228

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

Answer 229

A high pressure, the volume of the gas becomes insignificant

Answer 230

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

Answer 231

Diatic bond

Answer 232

Covalent bonds

Answer 233

Ionic compounds

Answer 234

Metallic bonds

Answer 235

To avoid premature crystallization of the solute

Answer 236

To dissolve large amount of substance at its boiling point

Answer 237

Filtering the hot saturated solution

Answer 238

Increasing the rate of filtration

Answer 239

All types of atoms and molecules

Answer 240

Polar compounds

Answer 241

Monoclinic

Answer 242

Tetragonal

Answer 243

Gas < liquid < solid

Answer 244

Gas < liquid < solid

Answer 245

Gas = liquid = solid

Answer 246

Liquid < gas < solid

Answer 247

Change by 33%

Answer 248

Is changed by about 26%

Answer 249

Is unchanged

Answer 250

A and C have same reading and are less then B

Answer 251

Gets a double negative charge

Answer 252

Gets a single negative charge

Answer 253

Gets a single positive charge

Answer 254

Gets a double positive charge

Answer 255

None of these

Answer 256

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

Answer 257

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

Answer 258

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

Answer 259

The filtrate is quick

Answer 260

This gives medium size crystals

Answer 261

Filtrate runs down without crystals

Answer 262

This gives bigger size crystals

Answer 263

Octahedron

Answer 264

Tetrahedron

Answer 265

Liquid solid chromatography

Answer 266

Ascending paper chromatography

Answer 267

Descending paper chromatography

Answer 268

Liquid gas chromatography

Answer 269

He will feel cool

Answer 270

His blood pressure will increase

Answer 271

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

Answer 272

He will feel warmth

Answer 273

8.31 JK¯¹ mol¯¹

Answer 274

8.31 x 10⁷ erg³ K¯¹ mol¯¹

Answer 275

8.31 x 10⁷ dynes Cm K¯¹ mol¯¹

Answer 276

8.31 L atm K¯¹ mol¯¹

Answer 277

Valence electrons

Answer 278

Liquid Crystals

Answer 279

Isomorphous crystals

Answer 280

Allotropic crystal

Answer 281

Isomeric crystals

Answer 282

About the same as the molar volumes of liquids

Answer 283

Much larger than the molar volumes of liquids and solids

Answer 284

Little bit greater than the molar volumes of liquid

Answer 285

Little bit less than the molar volumes of solids

Answer 286

Converted into wires

Answer 287

Melted easily

Answer 288

All of these

Answer 289

Converted into sheets

Answer 290

2nλ = d sin θ

Answer 291

nλ = 2 θ sin θ

Answer 292

nλ = 1/2d sin θ

Answer 293

nλ = 2 d sin θ

Answer 294

Anisotropy

Answer 295

Polymorphism

Answer 296

Isomorphism

Answer 297

159 mm Hg.

Answer 298

159 g/Cm²

Answer 299

Allotropes

Answer 300

Isoelectronic

Answer 301

5.01 x 10¯²¹ g

Answer 302

1.3 x 10¯²⁰ g

Answer 303

1.4 x 10¯²¹ g

Answer 304

3.72 x 10¯²³ g

Answer 305

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

Answer 306

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

Answer 307

Gases do not have a definite shape and volume

Answer 308

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

Answer 309

Free valence electrons

Answer 310

Ione pair of electrons

Answer 311

Repeated extraction and large portion of solvent

Answer 312

Single extraction and large portion of solvent

Answer 313

Repeated extraction and small portion of solvent

Answer 314

Single extraction and small portion of solvent

Answer 315

700 mm of Hg

Answer 316

100 mm of Hg

Answer 317

790 mm of Hg

Answer 318

1489 mm of Hg

Answer 319

Volume of CO₂ formed is 25 dm³

Answer 320

Volume of O₂ required is 25 dm³

Answer 321

Volume of CO₂ formed is 60 dm³

Answer 322

Volume of O₂ required is 50 dm³

Answer 323

Twice that in 60 g carbon

Answer 324

6.022 x 10²²

Answer 325

558.5 x 6.022 x 10²³

Answer 326

Half that in 8 g of He

Answer 327

15 tm, and 500 K

Answer 328

15 atm, and 200 K

Answer 329

1 atm, and 273 K

Answer 330

0.5 atm, and 500 K

Answer 331

There are rigid and in-compressible

Answer 332

They are anisotropic

Answer 333

They melt over a range of temperature

Answer 334

There is no orderly arrangement of particles

Answer 335

Rhombohedral

Answer 336

Isotropical

Answer 337

Monoclinic

Answer 338

100°C and 2.0 atm

Answer 339

-10°C and 2.0 atm

Answer 340

-10°C and 5.0 atm

Answer 341

0°C and 2.0 atm

Answer 342

Orthogonal lattice

Answer 343

Ortho rhombic lattice

Answer 344

Cubic lattice

Answer 345

Isotopic form

Answer 346

Isomorphism

Answer 347

Crystalline forms

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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