Fundamental Principles of Organic Chemistry Online Mcqs Test

Q: How can I prepare for Fundamental Principles of Organic Chemistry Online Mcqs Test?

You can prepare for Fundamental Principles of Organic Chemistry 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. Bromoethane can be converted to ethane by

Answer

Reaction with aq KOH

Answer

Reaction with alcoholic KOH

Question 2

2. Rates of organic reactions are

Answer

None-reactive

Question 3

3. Hydrocarbons contain

Answer

C and H only

Answer

C and S only

Answer

C, H, and O only

Answer

C, H, O and N only

Question 4

4. An alkene forms isomers if the number of carbon atoms is at least

Question 5

5. The process in which one s and two p orbitals mix up with each other is called

Answer

Sp-hybridization

Answer

Sp²-hybridization

Answer

Sp³-hybridization

Answer

Dsp²-hybridization

Question 6

6. Cracking is a process by which higher hydrocarbon are broken down into low boiling hydrocarbon. Which one is not generally a procedure for cracking:

Answer

Stem cracking

Answer

Thermal cracking

Answer

Normal cracking

Answer

Catalytic cracking

Question 7

7. There is no direct test for the detection of one of the following is an organic compound. Which is it?

Question 8

8. An isomer of ethanol is:

Answer

Diethyl ether

Answer

Dimethyl ether

Question 9

9. Petroleum is mainly a mixture of

Answer

Compounds of S

Answer

Saturated hydrocarbons

Answer

Unsaturated hydrocarbon

Question 10

10. When a carbon atom forms single bonds with other carbon atoms, these hybrid orbitals overlap with the orbitals of hydrogen to form four bonds which are

Answer

One sigma and three Pi

Answer

Three sigma and one Pi

Answer

Two sigma and two Pi

Question 11

11. The essential component of organic compound is

Question 12

12. The compounds containing –SH as a functional group are called

Answer

Hydrogen sulphides

Question 13

13. Which of the following four molecules are polar: PH₃ OF₂ HF SO₃?

Answer

None of these

Answer

All except SO₃

Answer

Only HF and OF₂

Question 14

14. Coal heated in the absence of air of about 500-1000⁰C is converted to

Question 15

15. Straight chain hydrocarbons are

Answer

None of these

Answer

In which atoms of C are in a series

Answer

Not in a series

Answer

In which each carbon is attached at least with three other carbon atoms

Question 16

16. Which is the character of organic compounds

Answer

Mostly ionic in character

Answer

Rates of reactions are very fast

Answer

They possess particular properties

Question 17

17. The active part in a molecule is called:

Answer

Homologous series

Answer

Chemical bonding

Answer

Ionic complex

Answer

Functional group

Question 18

18. Isomerism which is only found in alkanes?

Answer

Position isomerism

Answer

Metamerism

Answer

cis – trans isomerism

Answer

Functional group isomerism

Question 19

19. The compounds which have any atom other than carbon atom, in rings are called as

Answer

Homocyclic

Answer

Heterocyclic

Answer

None of these

Answer

Monocyclic

Question 20

20. Which of the following pairs of molecules and their molecular geometries in WRONG?

Answer

AsF₅ - trigonal bipyramidal

Answer

NF₃ - trigonal planar

Answer

BF₃ - trigonal planar

Answer

H₂O - bent

Question 21

21. Polythene is a polymer of

Question 22

22. Organic compounds are soluble in all except

Question 23

23. Which molecule is nonpolar?

Question 24

24. Acetylene had a characteristic ethereal smell resembling that of

Question 25

25. Which of the following compounds will exhibit cis-trans isomerism?

Question 26

26. Identify the compound which has a bond angle of 109.5°?

Question 27

27. Methane is produced when aluminum carbide is treated with

Question 28

28. The octane number is 100 for

Answer

Neo-octane

Answer

Neo-Pentane

Question 29

29. In Pakistan, 80% available coal is used for which purpose

Answer

Domestic use

Answer

Sugar industry

Answer

In glass industry

Answer

Bake bricks

Question 30

30. Which is the solid form of petroleum?

Question 31

31. On passing ethane into concentrated suphuric acid the intermediate compound formed on hydrolysis with boiling water gives.

Answer

Methyl hydrogen sulphate

Answer

Ethyl alcohol

Answer

Ethyl hydrogen sulphate

Answer

Methyl alcohol

Question 32

32. Geometry of simple molecule having sp3 hybrid orbital is

Answer

Tetrahedral

Answer

Square planner

Answer

Triangular

Question 33

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

Answer

1 band pair 3 lone pair

Answer

3 lone pair 1 bond pair

Answer

2 band pair 2 lone pair

Answer

3 band pair one lone pair

Question 34

34. In catalytic cracking, the typical catalyst used is

Answer

SiO₂+Al₂O₃

Question 35

35. A triple bond contains _____ sigma bond(s) and _________ pi bond(s).

Question 36

36. Which polyatomic ion is incorrectly matched with its ionic geometry?

Answer

ClO₂ - angular

Answer

SiCl₆²¯ -trigonal bipyramidal

Answer

NH₄⁺ - tetrahedral

Answer

PH₄⁺ - tetrahedral

Question 37

37. The use of tetra ethyl lead in petrol as an efficient antiknock agent is being discouraged. Which reason is correct?

Answer

Pb is difficult to obtain in bulk qualities

Answer

It is costly

Answer

The combustion product, lead causes air pollution

Answer

It damages the engine

Question 38

38. In benzene carbon – carbon bonds are

Answer

3 single and 3 double

Answer

Single covalent

Answer

Of the order 1.5

Answer

Double covalent

Question 39

39. Linear shape is shown by which compound

Answer

C₂H₂Cl₂

Question 40

40. The next homologue of C₁₀H₂₂ will be

Answer

C₁₁H₂₄

Answer

C₉H₂₀

Answer

C₁₂H₂₆

Answer

C₁₃H₂₈

Question 41

41. A π (pi) bond is the result of the

Answer

Overlap of two p orbitals along their axes

Answer

Overlap of two s orbitals

Answer

Overlap of an s and a p orbital

Answer

Sidewise overlap of two parallel p orbitals

Question 42

42. Compounds have same empirical formula but different molecular formula must have

Answer

Different molecular weights

Answer

The same viscosity

Answer

Same molecular weights

Answer

The same vapour density

Question 43

43. The characteristic reactions of alkanes are

Answer

Substitution reactions

Answer

Addition reactions

Answer

Polymerization

Answer

Condensation reactions

Question 44

44. Wholer prepared urea from

Question 45

45. Which of the following compounds contains a truple bond?

Question 46

46. On sp3 hybridization

Answer

One s and 3 p-orbitals are involved

Answer

One p-orbital is involved

Answer

All p-orbitals are involved

Answer

Four p-orbitals are involved

Question 47

47. Which of the following possess linear geometry

Question 48

48. When H₂SO₄ is heated with excess of chance of at 140°C. The major product is

Question 49

49. Organic compounds resemble to those of inorganic compounds having same

Answer

Ionic properties

Answer

Carbon forming long chain or rings

Answer

Chemical forces

Question 50

50. The bond angle between hydrogen atoms and carbon in alkane is

Question 51

51. Which one has zero octane number?

Answer

iso – octane

Answer

n – Hexane

Answer

n – Heptane

Question 52

52. The perchloric acid molecule contains:

Answer

2 lone pairs, 3 π bonds, and 4 σ bonds.

Answer

9 lone pairs, no π bonds, and 6 σ bonds.

Answer

8 lone pairs, 2 π bonds, and 7 σ bonds.

Answer

13 lone pairs, 1 π bond, and 4 σ bonds

Question 53

53. Pi bonds are produced by overlapping of

Answer

Un-hybrid orbitals

Answer

Hybrid and un hybrid orbitals

Answer

Atomic orbital and hybrid orbital

Answer

Hybrid orbitals

Question 54

54. A molecular orbital is formed by the linear combination of two atomic orbitals. A molecular orbital must accommodate __________ electrons.

Question 55

55. Which of the following gases is used for illuminating purpose?

Question 56

56. I-Chloropropane has two isomers. It is an example of

Answer

Position isomerism

Answer

Metamerism

Answer

Functional group isomerism

Answer

Chain isomerism

Question 57

57. The functional group isomer of dimethyl –ether is

Answer

Ethyl alcohol

Answer

Prophyl alcohol

Answer

Diethyl pether

Answer

Butyl alcohol

Question 58

58. The state of hybridization carbon in ethane is

Question 59

59. Replacement of hydrogen atom by – SO₃H group in benzene is called

Answer

Alkylation

Answer

Sulphonation

Question 60

60. The major portion of natural oil is

Question 61

61. Choose the molecule that is incorrectly matched with the electronic geometry about the central atom.

Answer

PF₃ - pyramidal

Answer

NH₃ - tetrahedral

Answer

CF₄ - tetrahedral

Answer

H₂O – tetrahedral

Question 62

62. The components of petroleum can be separated due to

Answer

Having different M.P.

Answer

Having different B.P.

Answer

Having different chemical properties

Answer

Having different physical states

Question 63

63. Which is a mixture of low boiling hydrocarbon

Answer

Natural gas

Question 64

64. Fossil fuels are sources of organic compounds. Which one is not fossil fuel?

Answer

Natural gas

Answer 136

Having different chemical properties

Answer 137

Having different M.P.

Answer 138

Having different B.P.

Answer 139

Having different physical states

Answer 140

Towards the addition reaction alkenes are more reactive than alkynes

Answer 141

Alkenes do not undergo addition reactions

Answer 142

Double and is stronger than single bond hence alkenes are less reactive than alkanes

Answer 143

Alkene decolourize bromine solution and Baeyer’s reagents but alkynes do not

Answer 144

90° and 120°

Answer 145

90° and 180°

Answer 146

45° and 90°

Answer 147

120° only

Answer 148

None of these

Answer 149

None of these

Answer 150

Catenation

Answer 151

Polymerization

Answer 152

Condensation

Answer 153

Isomerization

Answer 154

Antheracite

Answer 155

All atoms are SP² -hybridized

Answer 156

All atoms are SP³ -hybridized

Answer 157

All atoms in the ring are carbon

Answer 158

May be other atoms

Answer 159

Crystallization

Answer 160

Vapourization

Answer 161

Shape and Type of bonding

Answer 162

Type of Bonding

Answer 163

None of these

Answer 164

Ethanoic acid

Answer 165

Tetrahedron

Answer 166

Sigma bond is broken

Answer 167

Both bonds are broken

Answer 168

None of these

Answer 169

Pi bond is broken

Answer 170

All of these

Answer 171

NO₂¯ - trigonal palnar

Answer 172

ClO₄¯ - tetrahedral

Answer 173

ClO₃¯-tetrahedral

Answer 174

SO₃²¯ - pyramidal

Answer 175

Anthracite

Answer 176

Diastereomers

Answer 177

Conformers

Answer 178

Positional isomers

Answer 179

Enantiomers

Answer 180

Ammonium cyanate

Answer 181

Organic compounds are water soluble

Answer 182

They form long chain compounds

Answer 183

They exist in homologous series

Answer 184

Organic compound chain compounds

Answer 185

Carbonization

Answer 186

Hybridization

Answer 187

Isomerisation

Answer 188

Polymerization

Answer 189

Metamerism

Answer 190

Cis – trass isomerism

Answer 191

Position isomerism

Answer 192

Chain isomerism

Answer 193

Square planer

Answer 194

Tetrahedral

Answer 195

Dehydrogenation

Answer 196

Dehydration

Answer 197

Linear compounds

Answer 198

Both A and B

Answer 199

Both a and b

Answer 200

Functional isomers

Answer 201

Chain isomers

Answer 202

Position isomers

Answer 203

Metamerism

Answer 204

Functional group

Answer 205

Anthracene

Answer 206

Cyclohexanol

Answer 207

It is more stable

Answer 208

The molecule is symmetrical around C – C

Answer 209

The molecule is asymmetrical around C – C bond

Answer 210

It is less stable

Answer 211

Alkanes possess three groups attached to each carbon

Answer 212

0¯ bond required less energy to be rotated

Answer 213

0¯ bond is stronger than A-bond

Answer 214

The bond angle is 109.5°

Answer 215

- OH group

Answer 216

-CHO group

Answer 217

+NH₂ group

Answer 218

-CH₃ group

Answer 219

Functional group isomerism

Answer 220

Cis-trans isomerism

Answer 221

Metamerism

Answer 222

Position isomerism

Answer 223

Reforming process

Answer 224

Hydrogenation

Answer 225

(C₆H₁₀O₅)n

Answer 226

CaSO₄. 0.5H₂O

Answer 227

C₆H₁₂O₆

Answer 228

Structural

Answer 229

Functional group

Answer 230

Ethyl hydrogen sulphate

Answer 231

Methyl hydrogen sulphate

Answer 232

Ethyl alcohol

Answer 233

Methyl alcohol

Answer 234

Alkylation

Answer 235

Sulphonation

Answer 236

None of these

Answer 237

Para-magnetic

Answer 238

Un-saturated

Answer 239

Carbohydrates

Answer 240

None of these

Total Questions:	119
Time Allowed:	60 Minutes
Total Marks:	119
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

Fundamental Principles of Organic Chemistry Online Mcqs Test

Important Fundamental Principles of Organic Question and Answer

Chemistry Fundamental Principles of Organic Practice Test Online With Explanation

Chemistry

How to Score High in Fundamental Principles of Organic Chemistry Online Mcqs Test?

Key Preparation Tips:

More Related Resources

Malik Tahir

10 Comments

Leave a Reply Cancel reply

Important Fundamental Principles of Organic Question and Answer

Chemistry Fundamental Principles of Organic Practice Test Online With Explanation

Chemistry

How to Score High in Fundamental Principles of Organic Chemistry Online Mcqs Test?

Key Preparation Tips:

More Related Resources

Latest Updates

Malik Tahir

10 Comments

Leave a Reply Cancel reply