Chemistry Liquids and Solids Online Mcqs Test

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Question 1

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

Answer

700 mm of Hg

Answer

790 mm of Hg

Answer

1489 mm of Hg

Answer

100 mm of Hg

Question 2

2. Solvent extraction is mostly applied to separate

Answer

None of these

Answer

Inorganic compounds

Answer

Organic compounds

Answer

Both A and B

Question 3

3. Imagine a man is sitting in a room. The room is closed from all sides, no entry, no exit of any gas. If the room expands suddenly then

Answer

He will feel cool

Answer

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

Answer

He will feel warmth

Answer

His blood pressure will increase

Question 4

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

Answer

Covalent bond

Answer

Electrical attraction

Answer

Electrostatic force

Answer

Non covalent bond force

Question 5

5. 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 6

6. 4.4 g of CO₂ contains how many liters of CO₂ at STP?

Answer

2.24 liter

Answer

22.4 liter

Question 7

7. Solvents of covalent compounds include all but

Answer

Tetra chloromethane

Question 8

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

Answer

Anisotropy

Answer

Polymorphism

Answer

Isomorphism

Question 9

9. A malleable solid is one which can be

Answer

Converted into sheets

Answer

Melted easily

Answer

Converted into wires

Answer

All of these

Question 10

10. Mean distance between atoms in the range of

Question 11

11. 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 12

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

Question 13

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

Question 14

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

Answer

None of these

Question 15

15. Amorphous substance posses

Answer

No sharp melting points

Answer

No definite heat of fusion

Answer

All of these

Answer

No definite geometry

Question 16

16. 50dm³ of CO is burnt completely according to reaction 2CO + O₂ – 2CO₂ Choose the correct statement

Answer

Volume of O₂ required is 25 dm³

Answer

Volume of CO₂ formed is 60 dm³

Answer

Volume of O₂ required is 50 dm³

Answer

Volume of CO₂ formed is 25 dm³

Question 17

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

Question 18

18. In case of elements the polymorphism is called

Answer

Isomorphism

Answer

Crystalline forms

Answer

Isotopic form

Question 19

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

Answer

Avogadro’s law

Answer

Dalton’s law

Answer

Boyle’s law

Answer

Charles’ law

Question 20

20. 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 21

21. 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 22

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

Question 23

23. Number of atoms in 558.5 g of Fe (At. Mass of Fe = 55.85 g mole¯¹) is

Answer

6.022 x 10²²

Answer

558.5 x 6.022 x 10²³

Answer

Twice that in 60 g carbon

Answer

Half that in 8 g of He

Question 24

24. Potassium crystallizes with a

Answer

Orthogonal lattice

Answer

Ortho rhombic lattice

Answer

Cubic lattice

Question 25

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

Answer

Anisotropy

Answer

Polymorphism

Answer

Isomorphism

Question 26

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

Question 27

27. Which of the following is isotropic

Question 28

28. Which of the following are more temperature sensitive?

Answer

None of these

Answer

Solid crystals

Answer

Liquid crystals

Answer

Ionic crystals

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

Answer

AB₂ type ionic compound

Answer

ZnS type structure

Answer

CsCl type structure

Answer

NaCl type structure

Question 32

32. 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 33

33. 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

Be a function of the molecular mass of substance

Answer

Increase two fold

Answer

Remains unchanged

Answer

Decrease twice

Question 34

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

Question 35

35. Ice is ________ crystal

Question 36

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

Question 37

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

Question 38

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

Answer

Charles’ law

Answer

Dalton’s law

Answer

Boyle’s law

Answer

Graham’s law

Question 39

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

Answer

Pentavalent impurity

Answer

Trivalent impurity

Answer

Tetravalent

Answer

Divalent impurity

Question 40

40. Crystals can be classified into

Answer

7 crystal systems

Answer

14 crystal systems

Answer

3 crystal systems

Answer

4 crystal systems

Question 41

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

Answer

20 moles of S8

Answer

6 moles of S

Answer

5.0 moles of SO₂

Answer

44.8 dm3 CO₂ at S.T.P

Question 42

42. The mass of one mole of electron is

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. Formation of a cation is?

Question 45

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

Answer

A high pressure, the volume of the gas becomes insignificant

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

Question 46

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

Answer

Monoclimic

Question 47

47. Isotopes differ in

Answer

Arrangement of electrons in orbitals

Answer

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

Answer

Chemical properties

Answer

Properties which depend upon mass

Question 48

48. 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 49

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

Question 50

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

Answer

CH₄ and AlCl₃

Answer

H₂O and H⁺

Answer

NH₃ and BF₃

Answer

NH₃ and H⁺

Question 51

51. A solid may be made up of

Answer

A, B and C

Question 52

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

Answer

None of these

Question 53

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

Question 54

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

Answer

2.0478 x 10 ²⁴

Answer

1.5057 x 10 ²⁴

Answer

3.0115 x 10 ²⁴

Answer

4.0956 x 10 ²⁴

Question 55

55. 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 56

56. 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

Gases do not have a definite shape and volume

Answer

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

Answer

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

Question 57

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

Answer

Relative abundance

Answer

Number of isotopes

Question 58

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

Question 59

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

Answer

Octahedron

Answer

Tetrahedron

Question 60

60. In a crystal a ≠ b ≠ c, a = ϒ = 90° and β ≠ 90°. It is

Answer

Monoclinic

Answer

Tetragonal

Question 61

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

Question 62

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

Answer

Solvent extraction

Answer

Chromatography

Answer

Crystallization

Question 63

63. Half atmospheric pressure is

Answer

101.325 Pa

Answer

8.5 Pounds

Question 64

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

Answer 134

1 atm, and 273 K

Answer 135

0.5 atm, and 500 K

Answer 136

15 tm, and 500 K

Answer 137

15 atm, and 200 K

Answer 138

Miller indices

Answer 139

Isomorphism

Answer 140

Polymorphism

Answer 141

None of these

Answer 142

8.31 JK¯¹ mol¯¹

Answer 143

8.31 x 10⁷ dynes Cm K¯¹ mol¯¹

Answer 144

8.31 L atm K¯¹ mol¯¹

Answer 145

8.31 x 10⁷ erg³ K¯¹ mol¯¹

Answer 146

Metallic bonds

Answer 147

Diatic bond

Answer 148

Ionic compounds

Answer 149

Covalent bonds

Answer 150

Little bit less than the molar volumes of solids

Answer 151

About the same as the molar volumes of liquids

Answer 152

Much larger than the molar volumes of liquids and solids

Answer 153

Little bit greater than the molar volumes of liquid

Answer 154

Liquid O₂

Answer 155

Liquid H₂

Answer 156

Liquid CO₂

Answer 157

Liquid N₂

Answer 158

Definite geometry

Answer 159

All of these

Answer 160

Transition temperature

Answer 161

They melt over a range of temperature

Answer 162

There is no orderly arrangement of particles

Answer 163

They are anisotropic

Answer 164

There are rigid and in-compressible

Answer 165

Rhombohedral

Answer 166

Isotropical

Answer 167

Monoclinic

Answer 168

Repeated extraction and small portion of solvent

Answer 169

Single extraction and large portion of solvent

Answer 170

Repeated extraction and large portion of solvent

Answer 171

Single extraction and small portion of solvent

Answer 172

3 x 10²³ atoms of C

Answer 173

2 gram atom of nitrogen

Answer 174

7.0 g of Ag.

Answer 175

1 mole of S

Answer 176

Crystalline

Answer 177

Molecular solids

Answer 178

Covalent solids

Answer 179

Pseudo solids

Answer 180

Ionic solids

Answer 181

3 liter atm

Answer 182

2 liter atm

Answer 183

1 liter atm

Answer 184

No definite heat of fusion

Answer 185

Sharp melting points

Answer 186

Sharp B.P.

Answer 187

Definite heat of fusion

Answer 188

159 mm Hg.

Answer 189

159 g/Cm²

Answer 190

Condensation

Answer 191

Vaporization

Answer 192

Sublimation

Answer 193

Filtration

Answer 194

Fluted filter paper

Answer 195

Normal filter paper

Answer 196

Both A & B

Answer 197

Randomly moving

Answer 198

Orderly arranged

Answer 199

Having wide spaces

Answer 200

Causing pressure

Answer 201

-10°C and 5.0 atm

Answer 202

0°C and 2.0 atm

Answer 203

-10°C and 2.0 atm

Answer 204

100°C and 2.0 atm

Answer 205

Descending paper chromatography

Answer 206

Liquid solid chromatography

Answer 207

Liquid gas chromatography

Answer 208

Ascending paper chromatography

Answer 209

CaSO₄.2H₂O

Answer 210

Both fcc and bcc

Answer 211

None of these

Answer 212

Chloroform

Answer 213

Sulphuric acid

Answer 214

Acetic acid

Answer 215

Same physical and different chemical properties

Answer 216

Different physical and same chemical properties

Answer 217

Different physical and chemical properties

Answer 218

Same physical and chemical properties

Answer 219

Free valence electrons

Answer 220

Ione pair of electrons

Answer 221

nλ = 2 θ sin θ

Answer 222

nλ = 1/2d sin θ

Answer 223

nλ = 2 d sin θ

Answer 224

2nλ = d sin θ

Answer 225

Both diffused at the same time

Answer 226

CO₂ is 1.25 times faster than CO

Answer 227

CO is 3.75 times faster than CO₂

Answer 228

CO is 1.25 times faster than CO₂

Answer 229

Is changed by about 26%

Answer 230

Is unchanged

Answer 231

Change by 33%

Answer 232

Isoelectronic

Answer 233

Allotropes

Answer 234

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

Answer 235

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

Answer 236

None of these

Answer 237

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

Answer 238

A and C have same reading and are less then B

Answer 239

Colour of the gas is greenish yellow

Answer 240

A gas is liberated

Answer 241

Oxide of the gas is strongly acidic

Answer 242

The gas is chlorine

Answer 243

Decreased covalent and hydrogen bond forces

Answer 244

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

Answer 245

Increased attraction between the molecules

Answer 246

Decreased volume of the solution

Answer 247

10 mL of 0.5 M

Answer 248

10 mL of 0.02 M

Answer 249

10 mL of 0.1 M

Answer 250

5 mL of 0.1 M

Answer 251

B evaporates less readily than C

Answer 252

A and B evaporates at the same rate

Answer 253

B evaporates more readily than A

Answer 254

A evaporates more readily than C

Answer 255

Liquid < gas < solid

Answer 256

Gas = liquid = solid

Answer 257

Gas < liquid < solid

Answer 258

Gas < liquid < solid

Answer 259

Gets a single negative charge

Answer 260

Gets a double negative charge

Answer 261

Gets a double positive charge

Answer 262

Gets a single positive charge

Answer 263

Moderately

Answer 264

High temperature

Answer 265

High pressure

Answer 266

Both b and c

Answer 267

Low temperature

Answer 268

One mole of NH₃ will produce 6 moles of N₂

Answer 269

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

Answer 270

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

Answer 271

One mole of NH₃ will produce ½ mole of N₂

Answer 272

Heat the mixture and allow it to cool

Answer 273

Add water to the mixture and filter

Answer 274

Add dilute acid to the mixture and filter

Answer 275

Place the mixture in a separating funnel

Answer 276

Same physical and chemical properties

Answer 277

Same physical and difference chemical properties

Answer 278

Different physical and same chemical properties

Answer 279

Different physical and chemical properties

Answer 280

Valence electrons

Answer 281

Altahydral manner

Answer 282

Tetrahedral manner

Answer 283

Hexagonal manner

Answer 284

Square planner manner

Answer 285

3.72 x 10¯²³ g

Answer 286

5.01 x 10¯²¹ g

Answer 287

1.3 x 10¯²⁰ g

Answer 288

1.4 x 10¯²¹ g

Answer 289

Metallic compounds

Answer 290

Ionic compounds

Answer 291

Covalent compounds

Answer 292

Diatic bonds

Answer 293

127°C and 1 atm

Answer 294

0°C and 2 atm

Answer 295

273°C and 2 atm

Answer 296

S.T.P (0°C and 1 atm)

Answer 297

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

Answer 298

The carbon atoms are arranged layers

Answer 299

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

Answer 300

The coordination number of carbon atoms is 4

Answer 301

Molecules are in chaotic motion

Answer 302

Molecules of all the gases have same size and same mass

Answer 303

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

Answer 304

All molecular collisions are elastic

Answer 305

Definite geometry

Answer 306

Transition temperature

Answer 307

Sharp melting point

Answer 308

Polar compounds

Answer 309

All types of atoms and molecules

Answer 310

High ignition temperature

Answer 311

Low temperature

Answer 312

High solubility

Answer 313

High concentration

Answer 314

Can possess small regions of orderly arrangement of atoms

Answer 315

Have perfect arrangement of atoms

Answer 316

Undergo clean cleave when cut with knife

Answer 317

Have sharp melting point

Answer 318

Good conductivity in solid state

Answer 319

High vapour pressures

Answer 320

Solubility in polar solvents

Answer 321

Low melting points

Answer 322

None of these

Answer 323

Micro-crystalline solid

Answer 324

Super-cooled liquid

Answer 325

Y B₂Cu₃O₇

Answer 326

Yb Ba₂Cu₂O₈

Answer 327

Hg Be₂Ca₂Cu₂O₈

Answer 328

Y Ba₂Cu₃O₇

Answer 329

Isomorphous crystals

Answer 330

Allotropic crystal

Answer 331

Isomeric crystals

Answer 332

Liquid Crystals

Answer 333

Increase of K.E of molecules

Answer 334

Increase in potential energy of molecules

Answer 335

Decrease of surface tension

Answer 336

Increase of intermolecular interactions

Answer 337

Na(g) → N²⁺ (g) + e¯

Answer 338

Na(s) → N²⁺ (g) + e¯

Answer 339

Na(s) → N²⁺ (g) + 2e¯

Answer 340

Na(g) → N²⁺ (g) + +¯

Answer 341

Transition elements

Answer 342

Lanthanides

Answer 343

p-block elements

Answer 344

To avoid premature crystallization of the solute

Answer 345

Filtering the hot saturated solution

Answer 346

Increasing the rate of filtration

Answer 347

To dissolve large amount of substance at its boiling point

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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