Chemistry Liquids and Solids Online Mcqs Test

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Question 1

1. 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 2

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

Answer

Acetic acid

Answer

Chloroform

Answer

Sulphuric acid

Question 3

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

Question 4

4. 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 5

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

Answer

Isomorphism

Answer

Polymorphism

Answer

None of these

Question 6

6. 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 7

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

Question 8

8. Ionic solids are characterized by

Answer

Solubility in polar solvents

Answer

Good conductivity in solid state

Answer

Low melting points

Answer

High vapour pressures

Question 9

9. A malleable solid is one which can be

Answer

Melted easily

Answer

All of these

Answer

Converted into wires

Answer

Converted into sheets

Question 10

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

Question 11

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

Question 12

12. 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

11.2 liters

Answer

2.24 liters

Answer

22.4 liters

Question 13

13. Simple molecules or giant macromolecules are examples of

Answer

Diatic bond

Answer

Metallic bonds

Answer

Covalent bonds

Answer

Ionic compounds

Question 14

14. 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 15

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

Answer

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

Answer

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

Answer

Gases do not have a definite shape and volume

Answer

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

Question 16

16. Formation of a cation is?

Question 17

17. The molar volume of CO₂ is maximum at

Answer

273°C and 2 atm

Answer

S.T.P (0°C and 1 atm)

Answer

0°C and 2 atm

Answer

127°C and 1 atm

Question 18

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

Answer

Anisotropy

Answer

Isomorphism

Answer

Polymorphism

Question 19

19. Particles that most effects material properties

Answer

Valence electrons

Question 20

20. A solid may be made up of

Answer

A, B and C

Question 21

21. Crystalline solids can be identified easily from their

Answer

Definite geometry

Answer

Sharp melting point

Answer

Transition temperature

Question 22

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

Answer

Pressure of dust particles in air

Answer

Different molar mass

Answer

Non-polar nature of gases

Answer

Elastic collisions of gas molecules

Question 23

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

Answer

Tetrahedron

Answer

Octahedron

Question 24

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

Question 25

25. In case of elements the polymorphism is called

Answer

Isotopic form

Answer

Crystalline forms

Answer

Isomorphism

Question 26

26. The example of hexagonal system is

Question 27

27. Potassium crystallizes with a

Answer

Orthogonal lattice

Answer

Ortho rhombic lattice

Answer

Cubic lattice

Question 28

28. Bragg’s law is given by equation

Answer

nλ = 2 d sin θ

Answer

2nλ = d sin θ

Answer

nλ = 1/2d sin θ

Answer

nλ = 2 θ sin θ

Question 29

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

Answer

Number of isotopes

Answer

Relative abundance

Question 30

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

Question 31

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

Question 32

32. Triple point of water is

Question 33

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

Answer

0°C and 2.0 atm

Answer

-10°C and 5.0 atm

Answer

100°C and 2.0 atm

Answer

-10°C and 2.0 atm

Question 34

34. Under what conditions real gases deviate from ideal behavior

Answer

Low temperature

Answer

High temperature

Answer

Both b and c

Answer

High pressure

Question 35

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

Answer

Fluted filter paper

Answer

Normal filter paper

Answer

Both A & B

Question 36

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

Question 37

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

Answer

CO is 1.25 times faster than CO₂

Answer

Both diffused at the same time

Answer

CO is 3.75 times faster than CO₂

Answer

CO₂ is 1.25 times faster than CO

Question 38

38. The mass of one mole of electron is

Question 39

39. Glass is a

Answer

Micro-crystalline solid

Answer

Super-cooled liquid

Answer

None of these

Question 40

40. 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

Isomorphous crystals

Answer

Allotropic crystal

Answer

Isomeric crystals

Answer

Liquid Crystals

Question 41

41. Which is trigonal crystal?

Answer

CaSO₄.2H₂O

Question 42

42. ‘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 43

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

Answer

1.5057 x 10 ²⁴

Answer

4.0956 x 10 ²⁴

Answer

2.0478 x 10 ²⁴

Answer

3.0115 x 10 ²⁴

Question 44

44. The allotropic forms of an element are called

Answer

Isoelectronic

Answer

Allotropes

Question 45

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

Answer

Both fcc and bcc

Answer

None of these

Question 46

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

Question 47

47. Which of the following has least mass?

Answer

7.0 g of Ag.

Answer

3 x 10²³ atoms of C

Answer

1 mole of S

Answer

2 gram atom of nitrogen

Question 48

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

Answer

159 g/Cm²

Answer

159 mm Hg.

Question 49

49. 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 solid chromatography

Answer

Liquid gas chromatography

Answer

Ascending paper chromatography

Question 50

50. 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 51

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

Answer

Square planner manner

Answer

Tetrahedral manner

Answer

Hexagonal manner

Answer

Altahydral manner

Question 52

52. Super conductors are derived from compounds of

Answer

p-block elements

Answer

Lanthanides

Answer

Transition elements

Question 53

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

Answer

This gives medium size crystals

Answer

The filtrate is quick

Answer

Filtrate runs down without crystals

Answer

This gives bigger size crystals

Question 54

54. Which of the following are more temperature sensitive?

Answer

None of these

Answer

Ionic crystals

Answer

Liquid crystals

Answer

Solid crystals

Question 55

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

Question 56

56. Which of the following metal oxides is anti-ferromagnetic in nature?

Question 57

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

Answer

Increase of K.E of molecules

Answer

Decrease of surface tension

Answer

Increase in potential energy of molecules

Answer

Increase of intermolecular interactions

Question 58

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

Question 59

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

Answer

Ione pair of electrons

Answer

Free valence electrons

Question 60

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

Question 61

61. What is the concentration of nitrate ions, if equal volumes of 0.1 M AgNO₃ and 0.1 M NaCl are mixed together?

Question 62

62. Van der Waal’s forces exist in

Answer

Polar compounds

Answer

All types of atoms and molecules

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

C₄H₁₀O₂

Answer

C₆H₁₀O₄

Answer

C₃H₁₀O₂

Answer

C₃H₅O₂

Question 64

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

Answer

None of these

Answer 133

6 moles of S

Answer 134

20 moles of S8

Answer 135

44.8 dm3 CO₂ at S.T.P

Answer 136

5.0 moles of SO₂

Answer 137

Non covalent bond force

Answer 138

Electrical attraction

Answer 139

Covalent bond

Answer 140

Electrostatic force

Answer 141

The carbon atoms are arranged layers

Answer 142

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

Answer 143

The coordination number of carbon atoms is 4

Answer 144

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

Answer 145

Liquid H₂

Answer 146

Liquid O₂

Answer 147

Liquid N₂

Answer 148

Liquid CO₂

Answer 149

8.5 Pounds

Answer 150

101.325 Pa

Answer 151

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

Answer 152

Decreased covalent and hydrogen bond forces

Answer 153

Increased attraction between the molecules

Answer 154

Decreased volume of the solution

Answer 155

Miller indices

Answer 156

Isotropical

Answer 157

Monoclinic

Answer 158

Rhombohedral

Answer 159

Place the mixture in a separating funnel

Answer 160

Add water to the mixture and filter

Answer 161

Heat the mixture and allow it to cool

Answer 162

Add dilute acid to the mixture and filter

Answer 163

Same physical and chemical properties

Answer 164

Different physical and chemical properties

Answer 165

Different physical and same chemical properties

Answer 166

Same physical and difference chemical properties

Answer 167

They melt over a range of temperature

Answer 168

There are rigid and in-compressible

Answer 169

There is no orderly arrangement of particles

Answer 170

They are anisotropic

Answer 171

None of these

Answer 172

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

Answer 173

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

Answer 174

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

Answer 175

22.4 liter

Answer 176

2.24 liter

Answer 177

To avoid premature crystallization of the solute

Answer 178

To dissolve large amount of substance at its boiling point

Answer 179

Filtering the hot saturated solution

Answer 180

Increasing the rate of filtration

Answer 181

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

Answer 182

One mole of NH₃ will produce 6 moles of N₂

Answer 183

One mole of NH₃ will produce ½ mole of N₂

Answer 184

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

Answer 185

Crystalline

Answer 186

A high pressure, the volume of the gas becomes insignificant

Answer 187

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

Answer 188

At high pressure, the intermolecular attraction becomes significant

Answer 189

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

Answer 190

Decrease twice

Answer 191

Be a function of the molecular mass of substance

Answer 192

Increase two fold

Answer 193

Remains unchanged

Answer 194

7 crystal systems

Answer 195

14 crystal systems

Answer 196

4 crystal systems

Answer 197

3 crystal systems

Answer 198

Pseudo solids

Answer 199

Ionic solids

Answer 200

Covalent solids

Answer 201

Molecular solids

Answer 202

CsCl type structure

Answer 203

AB₂ type ionic compound

Answer 204

NaCl type structure

Answer 205

ZnS type structure

Answer 206

Inorganic compounds

Answer 207

None of these

Answer 208

Organic compounds

Answer 209

Both A and B

Answer 210

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

Answer 211

Molecules are in chaotic motion

Answer 212

Molecules of all the gases have same size and same mass

Answer 213

All molecular collisions are elastic

Answer 214

Having wide spaces

Answer 215

Orderly arranged

Answer 216

Randomly moving

Answer 217

Causing pressure

Answer 218

790 mm of Hg

Answer 219

700 mm of Hg

Answer 220

1489 mm of Hg

Answer 221

100 mm of Hg

Answer 222

Avogadro’s law

Answer 223

Boyle’s law

Answer 224

Charles’ law

Answer 225

Dalton’s law

Answer 226

Little bit greater than the molar volumes of liquid

Answer 227

Little bit less than the molar volumes of solids

Answer 228

About the same as the molar volumes of liquids

Answer 229

Much larger than the molar volumes of liquids and solids

Answer 230

Tetra chloromethane

Answer 231

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

Answer 232

Arrangement of electrons in orbitals

Answer 233

Properties which depend upon mass

Answer 234

Chemical properties

Answer 235

NH₃ and H⁺

Answer 236

H₂O and H⁺

Answer 237

NH₃ and BF₃

Answer 238

CH₄ and AlCl₃

Answer 239

Gas = liquid = solid

Answer 240

Gas < liquid < solid

Answer 241

Gas < liquid < solid

Answer 242

Liquid < gas < solid

Answer 243

Different physical and chemical properties

Answer 244

Different physical and same chemical properties

Answer 245

Same physical and chemical properties

Answer 246

Same physical and different chemical properties

Answer 247

Condensation

Answer 248

Vaporization

Answer 249

Filtration

Answer 250

Sublimation

Answer 251

Transition temperature

Answer 252

Definite geometry

Answer 253

All of these

Answer 254

The gas is chlorine

Answer 255

Colour of the gas is greenish yellow

Answer 256

A gas is liberated

Answer 257

Oxide of the gas is strongly acidic

Answer 258

Sharp B.P.

Answer 259

Sharp melting points

Answer 260

Definite heat of fusion

Answer 261

No definite heat of fusion

Answer 262

Y B₂Cu₃O₇

Answer 263

Hg Be₂Ca₂Cu₂O₈

Answer 264

Y Ba₂Cu₃O₇

Answer 265

Yb Ba₂Cu₂O₈

Answer 266

None of these

Answer 267

Divalent impurity

Answer 268

Tetravalent

Answer 269

Pentavalent impurity

Answer 270

Trivalent impurity

Answer 271

Monoclimic

Answer 272

3 liter atm

Answer 273

1 liter atm

Answer 274

2 liter atm

Answer 275

6.02 x 10²³

Answer 276

2 x 6.02 x 10²³

Answer 277

3/2 x 6.02 x 10²³

Answer 278

4 x 6.02 x 10²³

Answer 279

8.31 L atm K¯¹ mol¯¹

Answer 280

8.31 JK¯¹ mol¯¹

Answer 281

8.31 x 10⁷ erg³ K¯¹ mol¯¹

Answer 282

8.31 x 10⁷ dynes Cm K¯¹ mol¯¹

Answer 283

Na(g) → N²⁺ (g) + e¯

Answer 284

Na(s) → N²⁺ (g) + e¯

Answer 285

Na(g) → N²⁺ (g) + +¯

Answer 286

Na(s) → N²⁺ (g) + 2e¯

Answer 287

No definite geometry

Answer 288

All of these

Answer 289

No sharp melting points

Answer 290

No definite heat of fusion

Answer 291

A and C have same reading and are less then B

Answer 292

15 tm, and 500 K

Answer 293

0.5 atm, and 500 K

Answer 294

15 atm, and 200 K

Answer 295

1 atm, and 273 K

Answer 296

Single extraction and large portion of solvent

Answer 297

Single extraction and small portion of solvent

Answer 298

Repeated extraction and large portion of solvent

Answer 299

Repeated extraction and small portion of solvent

Answer 300

Moderately

Answer 301

Ionic compounds

Answer 302

Covalent compounds

Answer 303

Diatic bonds

Answer 304

Metallic compounds

Answer 305

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

Answer 306

He will feel warmth

Answer 307

His blood pressure will increase

Answer 308

He will feel cool

Answer 309

Crystallization

Answer 310

Solvent extraction

Answer 311

Chromatography

Answer 312

10 mL of 0.02 M

Answer 313

5 mL of 0.1 M

Answer 314

10 mL of 0.1 M

Answer 315

10 mL of 0.5 M

Answer 316

Monoclinic

Answer 317

Tetragonal

Answer 318

Gets a double positive charge

Answer 319

Gets a single negative charge

Answer 320

Gets a single positive charge

Answer 321

Gets a double negative charge

Answer 322

Is unchanged

Answer 323

Is changed by about 26%

Answer 324

Change by 33%

Answer 325

B evaporates less readily than C

Answer 326

A and B evaporates at the same rate

Answer 327

B evaporates more readily than A

Answer 328

A evaporates more readily than C

Answer 329

Volume of O₂ required is 50 dm³

Answer 330

Volume of O₂ required is 25 dm³

Answer 331

Volume of CO₂ formed is 25 dm³

Answer 332

Volume of CO₂ formed is 60 dm³

Answer 333

Half that in 8 g of He

Answer 334

6.022 x 10²²

Answer 335

Twice that in 60 g carbon

Answer 336

558.5 x 6.022 x 10²³

Answer 337

High solubility

Answer 338

Low temperature

Answer 339

High ignition temperature

Answer 340

High concentration

Answer 341

1.3 x 10¯²⁰ g

Answer 342

3.72 x 10¯²³ g

Answer 343

1.4 x 10¯²¹ g

Answer 344

5.01 x 10¯²¹ g

Answer 345

Polymorphism

Answer 346

Anisotropy

Answer 347

Isomorphism

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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