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. Element having the smallest atomic radius among the following is

Question 2

2. The energy of a photon is given as, ∆ E/atom = 3.03 x 10¯¹⁹ J atom¯¹ then, the wavelength (λ) of the photon is

Question 3

3. Number of sigma bonds in P₄O₁₀ is

Question 4

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

Question 5

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

Answer

Tetrahedron

Question 6

6. Bohr’s model atom is contradicted by

Answer

Heisenberg’s uncertainty principle

Answer

Quarternization of energy of electrons

Answer

Plank’s quantum theory

Answer

Quarternization of angular members

Question 7

7. In Millikan oil – drop experiment, the charges on several different oil drops were as: -5.92. – 4.44, -2.96, -8.88. The units are arbitrary. Choose the likely value of the electronic charge in these arbitrary units?

Question 8

8. The energy of the first electron in helium will be

Question 9

9. Quantum umber values for 2p orbitals are

Answer

n = 1, l = 2

Answer

n = 2, l = 1

Answer

n = 2, l = 0

Answer

n = 1, l = 0

Question 10

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

Answer

Electro negativity

Answer

Ionization energy

Answer

None of these

Answer

Electron affinity

Question 11

11. Geometry of simple molecule having sp3 hybrid orbital is

Answer

Square planner

Answer

Triangular

Answer

Tetrahedral

Question 12

12. In OF₂, number of bond pairs and lone pairs of electrons are respectively

Question 13

13. Which of the following has zero depolemoment?

Question 14

14. Atom with higher atomic number produces X-rays of

Answer

Gamma rays

Answer

Shorter wavelength

Answer

Larger wavelength

Answer

X-rays not produced

Question 15

15. Which molecule is polar among the following?

Answer

Carbon dioxide

Answer

Carbon tetrachloride

Question 16

16. When 2 lone pair and 2 bond pair are around the central atom reduction in the bond angle is up to. (in degrees)

Question 17

17. The velocity of photon is

Answer

Independent of its wavelength

Answer

Depends on its wavelength

Answer

Depends on its source

Answer

Equal to square

Question 18

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

Question 19

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

Question 20

20. By combining n atomic orbital, numbers of hybrid orbitals will be

Answer

Impossible to predict

Question 21

21. If the radius of first Bohr orbit be ɜ₀, then the radius of third Bohr orbit would be

Answer

1/2 x ɜ₀

Question 22

22. Which of the following is not absolute term of element?

Answer

Electronegativity

Answer

Atomic size

Answer

Electron affinity

Answer

Ionization energy

Question 23

23. If the value of principal quantum number is 3, the total possible values for magnetic quantum number will be

Question 24

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

Answer

1 bond pair 3 lone pair

Answer

2 bond pair 2 lone pair

Answer

3 bond pair one lone pair

Answer

3 lone pair 1 bond pair

Question 25

25. The number of σ and π-bonds present in pent-4-en-l yne is

Question 26

26. For principle quantum number, n = 4, the total number of orbitals having 1 = 3 is

Question 27

27. Which of the following would have a permanent dipole moment?

Question 28

28. A lone pair of electrons in an atom implies

Answer

A pair of electrons

Answer

A pair of valence electrons

Answer

A pair of electrons involved in bonding

Answer

A pair of valence electrons not involved in bonding

Question 29

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

Question 30

30. Keeping in view the bonding molecular orbitals, find the incorrect statement

Answer

Bonding molecular orbitals have low electron density between the two nuclei

Answer

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

Answer

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

Answer

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

Question 31

31. Which kinds of bonding can be found in a sample of H₂O(l)?

Answer

Hydrogen bonds only

Answer

Nonpolar covalent bonds only

Answer

Both polar covalent and hydrogen bonds

Answer

Ionic and nonpolar hydrogen bonds

Question 32

32. Which of the following is a non-directional orbital

Question 33

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

Answer

Water should be preferred over lemon Juice for drinking

Answer

Lemon juice is dangerous for health

Answer

There may not be a possibility of chemical reaction

Answer

There may be a possibility of a chemical reaction

Question 34

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

Answer

1.7588 x 10²⁰

Answer

6.02 x 10²³

Answer

1.7588 x 10¹¹

Answer

9.1095 x 10¯³¹

Question 35

35. When 6d orbital is complete, the entering electron goes into

Question 36

36. Force responsible to hold atoms together in a compound is called

Answer

Interaction

Answer

All of above represent same entity

Answer

Attractive force

Question 37

37. Which of the following has unchanged valency?

Question 38

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

Answer

4, 4, 0, ½

Answer

4, 1, 1, ½

Answer

4, 0, 0, ½

Answer

4, 1, 0, ½

Question 39

39. The nature of positive rays depends upon

Answer

The nature of electrode

Answer

The nature of discharge tube

Answer

The nature of residual gas

Answer

All of these

Question 40

40. Select the arrangement of electromagnetic radiation which starts with the lowest energy and increases to the highest energy

Answer

Microwave, infrared, visible, ultraviolet

Answer

X – radiation, visible, infrared, microwave

Answer

Radio, visible, infrared, ultraviolet

Answer

Visible, ultraviolet, infrared, gamma rays

Question 41

41. Ionic radius in a period from left to right

Answer

First increases then decreases

Answer

First decreases then increases

Question 42

42. Nuclear radiation is emitted by those elements whose

Answer

Nuclei are unstable

Answer

Nuclei are stable

Answer

Molecules are stable

Answer

Molecules are unstable

Question 43

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

Answer

Electron affinity

Answer

Electro negativity

Answer

Ionization energy

Answer

None of these

Question 44

44. When two hydrogen atoms approach to form a chemical bond

Answer

The two atoms start ionization

Answer

They energy of atoms increases

Answer

The repulsive force dominate the attractive forces

Answer

The attractive forces dominate the repulsive forces

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

Question 47

47. In which one of the following does the central atom not possess can octet in its outer shell?

Question 48

48. Unit of dipole moment is

Question 49

49. Energy of an atom in a compound is

Answer

Lesser than individual

Answer

Higher than individual

Answer

Impossible to predict

Question 50

50. Which of the following equation represents the 1^st ionization energy of Na?

Question 51

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

Question 52

52. The atomic number of an element is 35. What is the total number of electrons present in all the p-orbitals of the ground state atom of that element?

Question 53

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

Answer

Planar triangle

Answer

Square planar

Answer

Tetrahedral

Question 54

54. The shape of H₃O⁺ is

Answer

Tetrahedral

Answer

Triangular planar

Question 55

55. A student subtracted 0.00055 from 10.2345678 and reported the result as 10.23401. But his friend told him that result was wrong. What is the correct result?

Answer

10.2340178

Question 56

56. Energy released or absorbed when electrons are added in atom is

Answer

Ionization potential

Answer

Electronegativity

Answer

Activation energy

Answer

Electron affinity

Question 57

57. Lewis acids are

Answer

Electron deficient

Answer

No such acids exist

Answer

Electron rich

Answer

Octet is complete

Question 58

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

Question 59

59. Which one shows high % age of the ionic character?

Question 60

60. The electronegativity of elements in a period from left to right

Answer

First decreases then increases

Answer

First increases then decreases

Question 61

61. Bond order for N2 molecule is

Question 62

62. 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 63

63. Which of these molecules require more bond energy?

Question 64

64. The structure of ICl₂¯ is

Answer

Square planar

Answer

Octahedral

Answer

Trigonal bipyramidal

Answer 111

Chemical bond

Answer 112

London force

Answer 113

Van der Waal’s force

Answer 114

Dispersion force

Answer 115

Noble gases

Answer 116

Alkali metals

Answer 117

Coinage metals

Answer 118

Gun metals

Answer 119

6.02 x 10¹⁶ J/mol

Answer 120

6.02 x 10²³ J/mol

Answer 121

10¯⁷ J/mol

Answer 122

Remains constant

Answer 123

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

Answer 124

Un-hybrid orbitals

Answer 125

Atomic orbital and hybrid orbital

Answer 126

Hybrid orbitals

Answer 127

Hybrid and un hybrid orbitals

Answer 128

Cannot be determined

Answer 129

Both are equal

Answer 130

Low, positive or slightly negative

Answer 131

Low very negative

Answer 132

None of these

Answer 133

High, very negative

Answer 134

None of these

Answer 135

Bonding will not occur

Answer 136

Both A and B are correct

Answer 137

Orbital overlap will not occur

Answer 138

One p-orbital is involved

Answer 139

One s and 3 p-orbitals are involved

Answer 140

All p-orbitals are involved

Answer 141

Four p-orbitals are involved

Answer 142

Square planar

Answer 143

Trigonal bipyramidal

Answer 144

Tetrahedral

Answer 145

Sublimation of metallic sodium to give yellow vapour

Answer 146

Photosensitivity of sodium

Answer 147

Low ionization energy of sodium

Answer 148

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

Answer 149

Double bond

Answer 150

Co-ordinate bond

Answer 151

Electrovalent bond

Answer 152

Covalent bond

Answer 153

Concentrated acids

Answer 154

Polar solvents

Answer 155

All solvents

Answer 156

Non-polar solvents

Answer 157

Dispersion force

Answer 158

Ion-dipole interaction

Answer 159

Dipole-dipole interaction

Answer 160

sp- hybridized carbon

Answer 161

sp²- hybridized carbon

Answer 162

always same irrespective of its hybrid state

Answer 163

sp³-hybridized carbon

Answer 164

Depends on the pressure in the discharge tube

Answer 165

Depends on the gas used in the discharge tube

Answer 166

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

Answer 167

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

Answer 168

Crystallization

Answer 169

Colour spectrum

Answer 170

Vaporization

Answer 171

Distillation

Answer 172

Hydrogen sulphide

Answer 173

Hydrogen fluoride

Answer 174

Two sigma, one pi

Answer 175

Two sigma, two pi

Answer 176

One sigma, one pi

Answer 177

One sigma, two pi

Answer 178

All of these

Answer 179

Van der Waal forces or London dispersion forces

Answer 180

Hydrogen bonds

Answer 181

Covalent forces

Answer 182

Square planner

Answer 183

Triangular

Answer 184

Tetrahedral

Answer 185

Metallic bond

Answer 186

Covalent bond

Answer 187

Ionic bond

Answer 188

Van der Waal’s forces

Answer 189

Octahedral

Answer 190

Planar triangle

Answer 191

Distorted tetrahedral

Answer 192

No specificity exist

Answer 193

Equal to 1.7

Answer 194

Greater than 1.7

Answer 195

Lesser then 1.7

Answer 196

By gaining two electrons

Answer 197

By losing two electrons

Answer 198

By losing three electrons

Answer 199

By gaining three electrons

Answer 200

None of these

Answer 201

Ionization energy

Answer 202

Electron affinity

Answer 203

Electronegativity

Answer 204

Addition of atomic orbitals

Answer 205

Subtraction of atomic orbitals

Answer 206

Multiplication of atomic orbitals

Answer 207

None of these

Answer 208

Hund’s rule

Answer 209

Pauli’s exclusion principle

Answer 210

Aufbau principal

Answer 211

Ionic bond

Answer 212

Metallic bond

Answer 213

Water molecules associate through hydrogen bonding

Answer 214

Water has higher molecular weight

Answer 215

Hydrogen sulphide is a weak acid

Answer 216

Sulphure has high electronegativity than oxygen

Answer 217

Trigonal bipyramidal

Answer 218

Tetrahedral

Answer 219

Octahedral

Answer 220

Pauli exclusion principle

Answer 221

Electropositive character of elements

Answer 222

Octet rule

Answer 223

Electronegative character of elements

Answer 224

6 electrons

Answer 225

2 electrons

Answer 226

1 electron

Answer 227

4 electrons

Answer 228

Sixth Bohr orbit to the third Bohr orbit

Answer 229

Fifth Bohr orbit to the second Bohr orbit

Answer 230

Fourth Bohr orbit to the first Bohr orbit

Answer 231

Seventh Bohr orbit to the third Bohr orbit

Answer 232

2 covalent, one co-ordinate bond

Answer 233

2 sigma bonds

Answer 234

2π and one σ bond

Answer 235

Ionic bonds

Answer 236

Fluorides is more electronegative

Answer 237

Fluorides are more electronegative

Answer 238

NH₃ is pyramidal in shape while BF₃ is planar

Answer 239

Boron trifluoride is pyramidal in shape while NH₃ is planar

Answer 240

Bond order of 2.5

Answer 241

Diamagnetic character

Answer 242

Stability lower then O₂

Answer 243

Three unpaired electrons

Answer 244

The overlap of two sp² hybrid orbitals

Answer 245

The axial p-p overlap

Answer 246

The axial s-p overlap

Answer 247

The sidewise p-p overlap

Answer 248

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

Answer 249

Lone pair – bond pair repulsion only

Answer 250

Lone pair – lone pair repulsion only

Answer 251

Bond pair – bond pair repulsion only

Answer 252

Trigonal bipyramidal

Answer 253

Triangular

Answer 254

Octahedral

Answer 255

Square planner

Answer 256

Remain same

Answer 257

Trigonal bipyramidal

Answer 258

It has high electronegativity

Answer 259

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

Answer 260

It has high heat of dissociation

Answer 261

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

Answer 262

Liquid HCl

Answer 263

Liquid NH3

Answer 264

sp³ hybrid orbitals

Answer 265

p orbitals

Answer 266

sp² hybrid orbitals

Answer 267

s orbitals

Answer 268

Ground state of fluorine atom

Answer 269

Excited state of O¯₂

Answer 270

Excited state of neon

Answer 271

Excited state of fluorine

Answer 272

They are also known as cations

Answer 273

They are formed when electros are formed from atoms

Answer 274

They are smaller than the atoms from which they were formed

Answer 275

They are larger than the atoms from which they were formed

Answer 276

They are mono atomic gases

Answer 277

They have high ionization energies

Answer 278

They do not react with one another

Answer 279

They have completely filled s and p orbitals

Answer 280

Variable trend

Answer 281

Blue has higher wavelength

Answer 282

Blue has more energy

Answer 283

Blue is absorbed more easily

Answer 284

Blue is darker colour

Answer 285

None of these

Answer 286

Two unpaired electron

Answer 287

One unpaired electron

Answer 288

No unpaired electron

Answer 289

Triangular

Answer 290

Tetrahedral

Answer 291

First decreases then increases

Answer 292

SP hybridization

Answer 293

Linear geometry

Answer 294

Dipole moment is zero

Answer 295

It is always less than 1st ionization energy

Answer 296

It is always greater than 1st ionization energy

Answer 297

It is equal to the 1st ionization energy

Answer 298

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

Answer 299

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

Answer 300

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

Answer 301

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

Answer 302

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

Answer 303

H – NH₂

Answer 304

Three pi-bonds

Answer 305

Three sigma bonds

Answer 306

One sigma bond and two pi-bonds

Answer 307

Two sigma bonds and one pi-bond

Answer 308

Hydrogen bond formation

Answer 309

Van der Waal’s forces

Answer 310

Dipole interaction

Answer 311

Covalent attraction

Answer 312

6.63 x 10¯³⁵ m

Answer 313

6.63 x 10¯³³ m

Answer 314

6.65 x 10¯³⁵ m

Answer 315

6.63 x 10¯³⁴ m

Answer 316

Nine σ and nine π

Answer 317

Eight σ and eight π

Answer 318

Nine σ and seven π

Answer 319

Five π and nine σ

Answer 320

Tetrahedral

Answer 321

Triangular planar

Answer 322

Triangular bipyramidal

Answer 323

Triangular pyramidal

Answer 324

Each bonding molecular orbital can accommodate only one electron

Answer 325

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

Answer 326

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

Answer 327

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

Answer 328

Bond length in NO⁺ is equal to that in NO

Answer 329

Bond length in NO⁺ is greater than in NO

Answer 330

Bond length in NO is greater than in NO⁺

Answer 331

Bond length is unpredictable

Answer 332

There is no effect

Answer 333

The absorption of electrons takes place

Answer 334

Ejection of electrons takes place

Answer 335

Ejection of some potassium atoms occurs

Answer 336

Generally increases from left to right in a period

Answer 337

Increase from top to bottom in a group

Answer 338

Does not change in a group

Answer 339

Does not change in a period

Answer 340

Charged particles

Answer 341

Can be deflected by magnetic fields

Answer 342

Move with speed as that of light

Answer 343

A stream of electrons

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:

More Related Resources

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:

More Related Resources

Latest Updates

Malik Tahir

2 Comments

Leave a Reply Cancel reply