Chemistry Chemical Bonding Online Mcqs Test

Q: How can I prepare for Chemistry Chemical Bonding Online Mcqs Test?

You can prepare for Chemistry Chemical Bonding Online Mcqs Test by attempting the free online quizzes at Gotest.com.pk. We provide instant results, performance reports, and detailed explanations for every question.

Question 1

1. Geometry of simple molecule having sp3 hybrid orbital is

Answer

Triangular

Answer

Tetrahedral

Answer

Square planner

Question 2

2. Which one of the following pairs of atoms is most likely to form an ionic bond?

Question 3

3. According to VESPR Model the geometry of molecule having 5 bond pair in outer most shell will be

Answer

Octahedral

Answer

Triangular

Answer

Trigonal bipyramidal

Answer

Square planner

Question 4

4. Which of the following molecules does not have a net dipole moment?

Question 5

5. Which of the following value of Electronegativity difference corresponds the formation of Ionic Bond?

Answer

Greater than 1.7

Answer

No specificity exist

Answer

Lesser then 1.7

Answer

Equal to 1.7

Question 6

6. Water (H₂O) is liquid while hydrogen sulphide (H₂O) is a gas because

Answer

Water molecules associate through hydrogen bonding

Answer

Water has higher molecular weight

Answer

Sulphure has high electronegativity than oxygen

Answer

Hydrogen sulphide is a weak acid

Question 7

7. Unit of dipole moment is

Question 8

8. Which of the sub – atomic particles is not charged?

Question 9

9. Choose the correct statement about 2nd ionization energy

Answer

It is equal to the 1st ionization energy

Answer

It may be greater or less than the 1st ionization depending upon ht nature of the element

Answer

It is always greater than 1st ionization energy

Answer

It is always less than 1st ionization energy

Question 10

10. Consider the ground state of Cr atom (Z = 24). The numbers of electrons with the azimuthal quantum numbers l = 1 and l = 2 are respectively

Question 11

11. H-bonding is not present in

Answer

Hydrogen sulphide

Answer

Hydrogen fluoride

Question 12

12. The structure of ICl₂¯ is

Answer

Octahedral

Answer

Trigonal bipyramidal

Answer

Square planar

Question 13

13. Which of the following has the greatest covalent character?

Question 14

14. According to VSEPR theory, the shape of the water molecule is

Answer

Distorted tetrahedral

Answer

Octahedral

Answer

Planar triangle

Question 15

15. The bond angle H – O – H in ice is closest to

Question 16

16. How many molecular orbitals may be constructed from the valence shell orbitals of the constituent atoms in CH₄?

Question 17

17. Nitrogen gas is chemically inert gas due to the reason that

Answer

It has high heat of dissociation

Answer

It has high electronegativity

Answer

There is triple bond between nitrogen atoms which make the molecule quite stable

Answer

Some of the electrons are also present in anti-bonding molecular orbitals

Question 18

18. Geometry of molecule will be pyramidal if the outer post shell of the central atom has

Answer

3 lone pair 1 bond pair

Answer

1 bond pair 3 lone pair

Answer

3 bond pair one lone pair

Answer

2 bond pair 2 lone pair

Question 19

19. Which of the following has more unpaired d-electrons?

Question 20

20. The shape of ClO₃ according to valence shell electron pair repulsion theory will be

Answer

Planar triangle

Answer

Square planar

Answer

Tetrahedral

Question 21

21. Molecular orbitals are filled according to

Answer

Hund’s rule

Answer

Pauli’s exclusion principle

Answer

Aufbau principal

Question 22

22. The spectrum of helium is expected to be similar to that of

Question 23

23. Which one of these is weakest?

Answer

Covalent bond

Answer

Van der Waal’s forces

Answer

Ionic bond

Answer

Metallic bond

Question 24

24. Noble gases are most stable of all other elements because

Answer

They are mono atomic gases

Answer

They have high ionization energies

Answer

They do not react with one another

Answer

They have completely filled s and p orbitals

Question 25

25. In O2 each oxygen atom is hybridized

Question 26

26. The energy required to remove electron from an atom is called

Question 27

27. When two ice cubes are pressed over each other, they unite to form one cube. Which of the following forces is responsible to hold them together?

Answer

Hydrogen bond formation

Answer

Dipole interaction

Answer

Van der Waal’s forces

Answer

Covalent attraction

Question 28

28. The central atom in BrF₅ has _?_ bonding pairs of electrons and _?_ non-bonding pairs of electrons.

Question 29

29. The relative attraction of the nucleus for the electrons in a chemical bond is called

Answer

Electro negativity

Answer

None of these

Answer

Electron affinity

Answer

Ionization energy

Question 30

30. Among the alkaline earth metals the element forming predominantly covalent compounds is

Question 31

31. Choose the correct statement

Answer

In molecular orbitals, the number of bonding electrons equals the number of anti-bonding electrons

Answer

The molecular orbitals in a molecule equals twice the number of constituent atomic orbitals

Answer

Each bonding molecular orbital can accommodate only one electron

Answer

As bonding molecular orbitals become more stable, anti-bonding molecular orbital become equally less stable

Question 32

32. Which of the following is the best explanation that CO₂ is a non-polar molecule?

Answer

Linear geometry

Answer

SP hybridization

Answer

Dipole moment is zero

Question 33

33. If atomic numbers of nickel and copper are 28 and 29 respectively. Which of the following does the electronic configuration 1s² 2s² 2p⁶3s²3p⁶3d⁹ represent?

Question 34

34. In CCl₄, the four valencies of carbon are directed towards the corners of a

Answer

Tetrahedron

Question 35

35. A molecule in which sp² hybrid orbitals are used by the central atom in forming covalent bonds is

Question 36

36. Along a period the atomic radii

Answer

First decreases then increases

Question 37

37. Sodium chloride imparts a yellow colour to the Bunsen flame. This can be interpreted due to the

Answer

Sublimation of metallic sodium to give yellow vapour

Answer

Photosensitivity of sodium

Answer

Emission of excess energy absorbed as a radiation in the visible region

Answer

Low ionization energy of sodium

Question 38

38. When a double bond is formed between two atoms, one of the bonds is a sigma bond and the other is a pi bond. The pi bond is created by the overlap of……

Answer

sp³ hybrid orbitals

Answer

sp² hybrid orbitals

Answer

s orbitals

Answer

p orbitals

Question 39

39. Which one among the following does not have the hydrogen bond?

Answer

Liquid HCl

Answer

Liquid NH3

Question 40

40. The boiling point of heavy water is

Question 41

41. The relative attraction of the nucleus for the electrons in a chemical bond is called

Answer

Ionization energy

Answer

Electro negativity

Answer

Electron affinity

Answer

None of these

Question 42

42. An oxygen atom has mass of

Answer

2.657 x 10¯²³ g

Answer

5.316 x 10¯²³ g

Answer

5.316 x 10¯²³ g

Question 43

43. Bohr’s model atom is contradicted by

Answer

Quarternization of energy of electrons

Answer

Plank’s quantum theory

Answer

Heisenberg’s uncertainty principle

Answer

Quarternization of angular members

Question 44

44. The value of e/m ratio of electron is:

Answer

6.02 x 10²³

Answer

1.7588 x 10²⁰

Answer

9.1095 x 10¯³¹

Answer

1.7588 x 10¹¹

Question 45

45. The correct set of quantum numbers (n, l and m) respectively of the unpaired electron of chlorine atom is:

Question 46

46. A chemist poured juice on soil. Which idea may he have in his mind?

Answer

There may be a possibility of a chemical reaction

Answer

There may not be a possibility of chemical reaction

Answer

Lemon juice is dangerous for health

Answer

Water should be preferred over lemon Juice for drinking

Question 47

47. An electron has principal quantum number 3. The number of its (i) subshells and (ii) orbitals would be respectively

Question 48

48. Fluorine has an atomic number 9 and Chlorine has 17. Which one has the highest electron affinity?

Answer

Both are equal

Answer

Cannot be determined

Question 49

49. Lateral overlapping expected in

Answer

Ionic bond

Answer

Metallic bond

Question 50

50. Which of the following hydrides has the lowest boiling point?

Question 51

51. Which of the following is to isoelectronic with rest of three?

Question 52

52. Quantum umber values for 2p orbitals are

Answer

n = 1, l = 0

Answer

n = 2, l = 0

Answer

n = 1, l = 2

Answer

n = 2, l = 1

Question 53

53. Which of the following geometry is associated with the compound in which the central atom assumes sp³ d hybridization?

Answer

Trigonal bipyramidal

Question 54

54. Pi bonds are produced by overlapping of

Answer

Hybrid and un hybrid orbitals

Answer

Un-hybrid orbitals

Answer

Hybrid orbitals

Answer

Atomic orbital and hybrid orbital

Question 55

55. The relative attraction of the nucleus for the electrons in a chemical bond is called

Answer

Electronegativity

Answer

Electron affinity

Answer

Ionization energy

Answer

None of these

Question 56

56. On sp3 hybridization

Answer

Four p-orbitals are involved

Answer

One s and 3 p-orbitals are involved

Answer

All p-orbitals are involved

Answer

One p-orbital is involved

Question 57

57. Unit of dipole moment is

Question 58

58. How many sigma and pi bonds are present in tetra cyano ethylene?

Answer

Nine σ and seven π

Answer

Nine σ and nine π

Answer

Eight σ and eight π

Answer

Five π and nine σ

Question 59

59. A lone pair of electrons in an atom implies

Answer

A pair of electrons

Answer

A pair of electrons involved in bonding

Answer

A pair of valence electrons

Answer

A pair of valence electrons not involved in bonding

Question 60

60. Which of the following is not isoelectronic?

Question 61

61. In which of the following pairs, the numbers of electrons in the outermost shell are different?

Question 62

62. Anti-bonding MO is formed by

Answer

Subtraction of atomic orbitals

Answer

Multiplication of atomic orbitals

Answer

None of these

Answer

Addition of atomic orbitals

Question 63

63. The configuration 1s² 2s² 2p⁵ 3s¹ shows

Answer

Ground state of fluorine atom

Answer

Excited state of fluorine

Answer

Excited state of O¯₂

Answer

Excited state of neon

Question 64

64. The four quantum numbers of the valency electron of potassium are

Answer

4, 1, 0, ½

Answer

4, 0, 0, ½

Answer

4, 1, 1, ½

Answer

4, 4, 0, ½

Answer 137

High, very negative

Answer 138

Low, positive or slightly negative

Answer 139

Low very negative

Answer 140

None of these

Answer 141

Polar solvents

Answer 142

Non-polar solvents

Answer 143

Concentrated acids

Answer 144

All solvents

Answer 145

Ejection of some potassium atoms occurs

Answer 146

There is no effect

Answer 147

Ejection of electrons takes place

Answer 148

The absorption of electrons takes place

Answer 149

Electropositive character of elements

Answer 150

Octet rule

Answer 151

Electronegative character of elements

Answer 152

Pauli exclusion principle

Answer 153

Triangular bipyramidal

Answer 154

Triangular pyramidal

Answer 155

Triangular planar

Answer 156

Tetrahedral

Answer 157

10.2340178

Answer 158

Tetrahedral

Answer 159

Triangular

Answer 160

Visible, ultraviolet, infrared, gamma rays

Answer 161

Microwave, infrared, visible, ultraviolet

Answer 162

Radio, visible, infrared, ultraviolet

Answer 163

X – radiation, visible, infrared, microwave

Answer 164

Remain same

Answer 165

2π and one σ bond

Answer 166

Ionic bonds

Answer 167

2 covalent, one co-ordinate bond

Answer 168

2 sigma bonds

Answer 169

The attractive forces dominate the repulsive forces

Answer 170

They energy of atoms increases

Answer 171

The two atoms start ionization

Answer 172

The repulsive force dominate the attractive forces

Answer 173

Co-ordinate bond

Answer 174

Double bond

Answer 175

Covalent bond

Answer 176

Electrovalent bond

Answer 177

sp³-hybridized carbon

Answer 178

sp²- hybridized carbon

Answer 179

sp- hybridized carbon

Answer 180

always same irrespective of its hybrid state

Answer 181

Octet is complete

Answer 182

No such acids exist

Answer 183

Electron rich

Answer 184

Electron deficient

Answer 185

Carbon dioxide

Answer 186

Carbon tetrachloride

Answer 187

Three sigma bonds

Answer 188

Three pi-bonds

Answer 189

One sigma bond and two pi-bonds

Answer 190

Two sigma bonds and one pi-bond

Answer 191

Vaporization

Answer 192

Colour spectrum

Answer 193

Crystallization

Answer 194

Distillation

Answer 195

Bond length in NO⁺ is equal to that in NO

Answer 196

Bond length is unpredictable

Answer 197

Bond length in NO is greater than in NO⁺

Answer 198

Bond length in NO⁺ is greater than in NO

Answer 199

Trigonal bipyramidal

Answer 200

Tetrahedral

Answer 201

Octahedral

Answer 202

Noble gases

Answer 203

Alkali metals

Answer 204

Coinage metals

Answer 205

Gun metals

Answer 206

Impossible to predict

Answer 207

Impossible to predict

Answer 208

Higher than individual

Answer 209

Lesser than individual

Answer 210

Remains constant

Answer 211

Decreases for low value of Z and increases for higher value of Z

Answer 212

Does not depend on the nature of the gas used in the discharge tube

Answer 213

Does not depend on the nature of the gas used in the discharge tube

Answer 214

Depends on the pressure in the discharge tube

Answer 215

Depends on the gas used in the discharge tube

Answer 216

H – NH₂

Answer 217

Atomic size

Answer 218

Electron affinity

Answer 219

Ionization energy

Answer 220

Electronegativity

Answer 221

Blue is absorbed more easily

Answer 222

Blue has more energy

Answer 223

Blue has higher wavelength

Answer 224

Blue is darker colour

Answer 225

First decreases then increases

Answer 226

First increases then decreases

Answer 227

4 electrons

Answer 228

2 electrons

Answer 229

6 electrons

Answer 230

1 electron

Answer 231

6.02 x 10¹⁶ J/mol

Answer 232

10¯⁷ J/mol

Answer 233

6.02 x 10²³ J/mol

Answer 234

They are larger than the atoms from which they were formed

Answer 235

They are also known as cations

Answer 236

They are formed when electros are formed from atoms

Answer 237

They are smaller than the atoms from which they were formed

Answer 238

Ionization potential

Answer 239

Electronegativity

Answer 240

Electron affinity

Answer 241

Activation energy

Answer 242

Two unpaired electron

Answer 243

No unpaired electron

Answer 244

None of these

Answer 245

One unpaired electron

Answer 246

Depends on its source

Answer 247

Equal to square

Answer 248

Depends on its wavelength

Answer 249

Independent of its wavelength

Answer 250

6.63 x 10¯³³ m

Answer 251

6.63 x 10¯³⁵ m

Answer 252

6.65 x 10¯³⁵ m

Answer 253

6.63 x 10¯³⁴ m

Answer 254

Variable trend

Answer 255

Dispersion force

Answer 256

Dipole-dipole interaction

Answer 257

Ion-dipole interaction

Answer 258

Does not change in a group

Answer 259

Increase from top to bottom in a group

Answer 260

Generally increases from left to right in a period

Answer 261

Does not change in a period

Answer 262

Van der Waal forces or London dispersion forces

Answer 263

All of these

Answer 264

Hydrogen bonds

Answer 265

Covalent forces

Answer 266

8 in bonding molecular orbitals, 4 in anti-bonding molecular orbitals

Answer 267

10 in bonding molecular orbitals and 2 in anti-bonding molecular orbitals

Answer 268

12 in bonding molecular orbitals, and zero in anti-bonding molecular orbitals

Answer 269

9 in bonding molecular orbitals and 3 in anti-bonding molecular orbitals

Answer 270

Every electron in the bonding molecular orbital contributes to the attraction between atoms

Answer 271

Bonding molecular orbitals are formed when the electrons waves are undergo constructive interference

Answer 272

Bonding molecular possess less energy than atomic orbitals from which they are formed

Answer 273

Bonding molecular orbitals have low electron density between the two nuclei

Answer 274

Can be deflected by magnetic fields

Answer 275

A stream of electrons

Answer 276

Charged particles

Answer 277

Move with speed as that of light

Answer 278

One sigma, two pi

Answer 279

Two sigma, two pi

Answer 280

Two sigma, one pi

Answer 281

One sigma, one pi

Answer 282

Larger wavelength

Answer 283

X-rays not produced

Answer 284

Shorter wavelength

Answer 285

Gamma rays

Answer 286

Orbital overlap will not occur

Answer 287

Bonding will not occur

Answer 288

None of these

Answer 289

Both A and B are correct

Answer 290

1/2 x ɜ₀

Answer 291

Triangular

Answer 292

Square planner

Answer 293

Tetrahedral

Answer 294

Molecules are unstable

Answer 295

Molecules are stable

Answer 296

Nuclei are stable

Answer 297

Nuclei are unstable

Answer 298

Lone pair – lone pair repulsion only

Answer 299

Lone pair – bond pair repulsion only

Answer 300

Lone pair – lone pair repulsion and lone pair – bond pair repulsion

Answer 301

Bond pair – bond pair repulsion only

Answer 302

Hydrogen bonds only

Answer 303

Nonpolar covalent bonds only

Answer 304

Ionic and nonpolar hydrogen bonds

Answer 305

Both polar covalent and hydrogen bonds

Answer 306

Trigonal bipyramidal

Answer 307

Tetrahedral

Answer 308

Square planar

Answer 309

Tetrahedral

Answer 310

Triangular planar

Answer 311

The nature of discharge tube

Answer 312

The nature of electrode

Answer 313

The nature of residual gas

Answer 314

All of these

Answer 315

First decreases then increases

Answer 316

First increases then decreases

Answer 317

By gaining two electrons

Answer 318

By gaining three electrons

Answer 319

By losing three electrons

Answer 320

By losing two electrons

Answer 321

Fluorides is more electronegative

Answer 322

Fluorides are more electronegative

Answer 323

NH₃ is pyramidal in shape while BF₃ is planar

Answer 324

Boron trifluoride is pyramidal in shape while NH₃ is planar

Answer 325

Van der Waal’s force

Answer 326

London force

Answer 327

Dispersion force

Answer 328

Chemical bond

Answer 329

Interaction

Answer 330

Attractive force

Answer 331

All of above represent same entity

Answer 332

Fifth Bohr orbit to the second Bohr orbit

Answer 333

Seventh Bohr orbit to the third Bohr orbit

Answer 334

Fourth Bohr orbit to the first Bohr orbit

Answer 335

Sixth Bohr orbit to the third Bohr orbit

Answer 336

The axial s-p overlap

Answer 337

The axial p-p overlap

Answer 338

The sidewise p-p overlap

Answer 339

The overlap of two sp² hybrid orbitals

Answer 340

Diamagnetic character

Answer 341

Three unpaired electrons

Answer 342

Bond order of 2.5

Answer 343

Stability lower then O₂

Total Questions:	187
Time Allowed:	60 Minutes
Total Marks:	187
How to Attempt Test:	Please choose the right Option in MCQ-type question.
Test Helpful For:	Chemistry Test ECAT Test MDCAT Test FPSC/PPSC/SPSC/KPPSC/BPSC/AJKPSC/NTS Chemistry Interview Question Answer

Chemistry Chemical Bonding Online Mcqs Test

Important Chemistry Chemical Bonding Question and Answer

Chemistry Chemical Bonding Practice Test Online With Explanation

Chemistry

How to Score High in Chemistry Chemical Bonding Online Mcqs Test?

Key Preparation Tips:

You May Also Like

Malik Tahir

2 Comments

Leave a Reply Cancel reply

Important Chemistry Chemical Bonding Question and Answer

Chemistry Chemical Bonding Practice Test Online With Explanation

Chemistry

How to Score High in Chemistry Chemical Bonding Online Mcqs Test?

Key Preparation Tips:

You May Also Like

Latest Updates

Malik Tahir

2 Comments

Leave a Reply Cancel reply